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Electronic Code of Federal Regulations

e-CFR Data is current as of September 19, 2014

Title 40Chapter ISubchapter J → Part 355


Title 40: Protection of Environment


PART 355—EMERGENCY PLANNING AND NOTIFICATION


Contents

Subpart A—General Information

§355.1   What is the purpose of this part?
§355.2   Who do “you,” “I,” and “your” refer to in this part?
§355.3   Which section contains the definitions of the key words used in this part?

Subpart B—Emergency Planning

Who Must Comply

§355.10   Must my facility comply with the emergency planning requirements of this subpart?
§355.11   To what substances do the emergency planning requirements of this subpart apply?
§355.12   What quantities of extremely hazardous substances trigger emergency planning requirements?
§355.13   How do I calculate the quantity of an extremely hazardous substance present in mixtures?
§355.14   Do I have to aggregate extremely hazardous substances to determine the total quantity present?
§355.15   Which threshold planning quantity do I use for an extremely hazardous substance present at my facility in solid form?
§355.16   How do I determine the quantity of extremely hazardous substances present for certain forms of solids?

How to Comply

§355.20   If this subpart applies to my facility, what information must I provide, who must I submit it to, and when is it due?
§355.21   In what format should the information be submitted?

Subpart C—Emergency Release Notification

Who Must Comply

§355.30   What facilities must comply with the emergency release notification requirements of this subpart?
§355.31   What types of releases are exempt from the emergency release notification requirements of this subpart?
§355.32   Which emergency release notification requirements apply to continuous releases?
§355.33   What release quantities of EHSs and CERCLA hazardous substances trigger the emergency release notification requirements of this subpart?

How To Comply

§355.40   What information must I provide?
§355.41   In what format should the information be submitted?
§355.42   To whom must I submit the information?
§355.43   When must I submit the information?

Subpart D—Additional Provisions

§355.60   What is the relationship between the emergency release notification requirements of this part and the release notification requirements of CERCLA?
§355.61   How are key words in this part defined?
Appendix A to Part 355—The List of Extremely Hazardous Substances and Their Threshold Planning Quantities
Appendix B to Part 355—The List of Extremely Hazardous Substances and Their Threshold Planning Quantities

Authority: Sections 302, 303, 304, 325, 327, 328, and 329 of the Emergency Planning and Community Right-to-Know Act of 1986 (EPCRA) (42 U.S.C. 11002, 11003, 11004, 11045, 11047, 11048, and 11049).

Source: 73 FR 65462, Nov. 3, 2008, unless otherwise noted.

Subpart A—General Information

§355.1   What is the purpose of this part?

(a) This part (40 CFR part 355) establishes requirements for a facility to provide information necessary for developing and implementing State and local chemical emergency response plans, and requirements for emergency notification of chemical releases. This part also lists Extremely Hazardous Substances (EHSs) and Threshold Planning Quantities (TPQs) in Appendices A and B, which are used in determining if you are subject to these requirements.

(b) This part is written in a special format to make it easier to understand the regulatory requirements. Like other Environmental Protection Agency (EPA) regulations, this part establishes enforceable legal requirements. Information considered non-binding guidance under EPCRA is indicated in this regulation by the word “note” and a smaller typeface. Such notes are provided for information purposes only and are not considered legally binding under this part.

§355.2   Who do “you,” “I,” and “your” refer to in this part?

Throughout this part, “you,” “I,” and “your” refer to the owner or operator of a facility.

§355.3   Which section contains the definitions of the key words used in this part?

The definitions of key words used in this part are in §355.61. It is important to read the definitions for these key words because the definition explains the word's specific meaning associated with the regulations in this part.

Subpart B—Emergency Planning

Who Must Comply

§355.10   Must my facility comply with the emergency planning requirements of this subpart?

You must comply with the emergency planning requirements in this subpart if your facility meets either of the following two conditions:

(a) Any extremely hazardous substance (EHS) is present at your facility in an amount equal to or greater than its threshold planning quantity (TPQ), or

(b) Your facility has been designated for emergency planning purposes, after public notice and opportunity for comment, by one of the following three entities:

(1) The State Emergency Response Commission (SERC).

(2) The Governor of the State in which your facility is located.

(3) The Chief Executive Officer of the Tribe for the Indian Tribe under whose jurisdiction your facility is located.

§355.11   To what substances do the emergency planning requirements of this subpart apply?

The emergency planning requirements of this subpart apply to any EHS listed in Appendices A and B of this part. Additionally, if a facility is designated for emergency planning purposes, as provided in §355.10(b), substances that are not EHSs at this facility may become subject to the emergency planning requirements.

§355.12   What quantities of extremely hazardous substances trigger emergency planning requirements?

Any EHS present at your facility in an amount equal to or greater than its TPQ triggers the emergency planning requirements of this subpart. The TPQs are listed in Appendices A and B of this part in the column labeled “threshold planning quantity.”

§355.13   How do I calculate the quantity of an extremely hazardous substance present in mixtures?

If an EHS is present in a mixture in a particular container, determine the quantity (in pounds) of the EHS in that container by multiplying the concentration of the EHS (in weight percent) by the weight (in pounds) of the mixture in the container. If the concentration of an EHS is less than or equal to one percent in the mixture, you do not have to count that EHS. Here is an example calculation:

Example: You have 150 pounds of a mixture that contains 20 weight percent of a certain EHS. The quantity of EHS present in the mixture is:

EHS (in pounds)

   = (weight percent of EHS) × (weight of mixture)

   = (20 percent) × (150 pound mixture)

   = (0.20) × (150)

EHS (in pounds)

   = 30 pounds

§355.14   Do I have to aggregate extremely hazardous substances to determine the total quantity present?

You must aggregate (i.e., add together) the amounts of each EHS at your facility to determine if a TPQ is present. This means that, for a particular EHS, you must determine the total amount present at any one time at your facility by adding together the quantity of pure EHS and the quantity contained in all mixtures, regardless of location, number of containers, or method of storage. You do not have to count an EHS in a mixture if the concentration of that EHS is less than or equal to one percent.

§355.15   Which threshold planning quantity do I use for an extremely hazardous substance present at my facility in solid form?

EHSs that are in solid form are subject to one of two different TPQs (for example, TPQs may be listed as 500/10,000 pounds), both of which are listed in Appendices A and B of this part. Here is how to determine which of the two listed TPQs you must use for an EHS present at your facility in solid form:

(a) Use the lower TPQ from Appendices A and B of this part if the solid:

(1) Is in powdered form and has a particle size less than 100 microns;

(2) Is in solution;

(3) Is in molten form; or

(4) Meets the criteria for a National Fire Protection Association (NFPA) rating of 2, 3 or 4 for reactivity.

Note to paragraph (a): Use the instructions in §355.16 to calculate the quantity present for the categories of solids listed in paragraphs (a)(1), (2) and (3) of this section.

(b) If the solid does not meet one of the criteria in paragraph (a) of this section, then the TPQ is 10,000 pounds.

§355.16   How do I determine the quantity of extremely hazardous substances present for certain forms of solids?

For the three forms of solids that are listed in §355.15(a)(1) through (3), use these instructions to determine the quantity of extremely hazardous substance present:

(a) Solid in powdered form with a particle size less than 100 microns. Multiply the weight percent of solid with a particle size less than 100 microns in a particular container by the total weight of solid in the container.

(b) Solid in solution. Multiply the weight percent of the non-reactive solid in solution in a particular container by the total weight of solution in that container. Then multiply by 0.2.

Note to paragraph (b): This reduction in quantity must not be used to determine the amount present at one-time at a facility for reporting under 40 CFR 370.10.

(c) Solid in molten form. Multiply the weight of the non-reactive solid in molten form by 0.3.

Note to paragraph (c): This reduction in quantity must not be used to determine the amount present at one-time at a facility for reporting under 40 CFR 370.10.

[73 FR 65462, Nov. 3, 2008, as amended at 77 FR 16688, Mar. 22, 2012]

How to Comply

§355.20   If this subpart applies to my facility, what information must I provide, who must I submit it to, and when is it due?

Use this table to determine the information you must provide, who to provide it to, and when:

What types of emergency planning notification are required? What information must I provide? To whom must I provide the
information?
When must I provide the information?
(a) Emergency planning notificationYou must provide notice that your facility is subject to the emergency planning requirements of this subpartTo the SERC and the LEPCWithin 60 days after your facility first becomes subject to the requirements of this subpart. If no LEPC exists for your facility at the time you are required to provide emergency planning notification, then you should report to the LEPC within 30 days after an LEPC is established for the emergency planning district in which your facility is located.
(b) Facility emergency coordinatorYou must designate a facility representative who will participate in the local emergency planning process as a facility emergency response coordinator. You must provide notice of this facility representativeTo the LEPC (or the SERC if there is no LEPC, or the Governor if there is no SERC)Within 60 days after your facility first becomes subject to the requirements of this subpart. If no LEPC exists when you first report, then provide an additional report to the LEPC within 30 days after such LEPC is established for the emergency planning district in which your facility is located.
(c) Changes relevant to emergency planningYou must provide notice of any changes occurring at your facility that may be relevant to emergency planningTo the LEPCWithin 30 days after the changes have occurred.
(d) Requested informationYou must provide any information necessary for developing or implementing the local emergency plan if the LEPC requests itTo the LEPCPromptly. Note: The LEPC may specify a time frame for this information.

§355.21   In what format should the information be submitted?

EPA does not require any specific format. EPA recommends that you submit the information described in §355.20 in writing in order to insure appropriate documentation. The SERC or LEPC may request that this information be submitted in a specific format.

Subpart C—Emergency Release Notification

Who Must Comply

§355.30   What facilities must comply with the emergency release notification requirements of this subpart?

You must comply with the emergency release notification requirements in this subpart if both of these two conditions are met:

(a) You produce, use, or store a hazardous chemical at your facility; and

(b) You release a reportable quantity (RQ) of any EHS or of a hazardous substance as defined by the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA Hazardous Substance) at your facility. Certain releases are exempted from these requirements. Exempted releases are listed in §355.31.

Note to paragraph (b): In addition to the emergency release notification requirements of this subpart, releases of CERCLA hazardous substances are subject to the notification requirements under CERCLA. This is explained further in subpart D of this part.

§355.31   What types of releases are exempt from the emergency release notification requirements of this subpart?

You do not have to provide emergency release notification under this subpart for any of the following six types of releases of EHSs or CERCLA hazardous substances that occur at your facility:

(a) Any release that results in exposure to persons solely within the boundaries of your facility.

(b) Any release that is a federally permitted release as defined in section 101(10) of CERCLA.

(c) Any release of a pesticide product that is exempt from reporting under section 103(e) of CERCLA.

(d) Any release that does not meet the definition of release under section 101(22) of CERCLA and is therefore exempt from CERCLA section 103(a) reporting.

(e) Any radionuclide release that occurs:

(1) Naturally in soil from land holdings such as parks, golf courses, or other large tracts of land.

(2) Naturally from land disturbance activities, including farming, construction, and land disturbance incidental to extraction during mining activities, except that which occurs at uranium, phosphate, tin, zircon, hafnium, vanadium, monazite, and rare earth mines. Land disturbance incidental to extraction includes: Land clearing; overburden removal and stockpiling; excavating, handling, transporting, and storing ores and other raw (not beneficiated or processed) materials; and replacing in mined-out areas coal ash, earthen materials from farming or construction, or overburden or other raw materials generated from the exempted mining activities.

(3) From the dumping and transportation of coal and coal ash (including fly ash, bottom ash, and boiler slags), including the dumping and land spreading operations that occur during coal ash uses.

(4) From piles of coal and coal ash, including fly ash, bottom ash, and boiler slags.

(f) Any release less than 1,000 pounds per 24 hours of nitrogen oxide or nitrogen dioxide to the air which is the result of combustion and combustion related activities.

(g) Any release to the air of a hazardous substance from animal waste at farms that stable or confine fewer than the numbers of animal specified in any of the following categories.

(1) 700 mature dairy cows, whether milked or dry.

(2) 1,000 veal calves.

(3) 1,000 cattle other than mature dairy cows or veal calves. Cattle includes but is not limited to heifers, steers, bulls and cow/calf pairs.

(4) 2,500 swine each weighing 55 pounds or more.

(5) 10,000 swine each weighing less than 55 pounds.

(6) 500 horses.

(7) 10,000 sheep or lambs.

(8) 55,000 turkeys.

(9) 30,000 laying hens or broilers, if the farm uses a liquid manure handling system.

(10) 125,000 chickens (other than laying hens), if the farm uses other than liquid manure handling system.

(11) 82,000 laying hens, if the farm uses other than a liquid manure handling system.

(12) 30,000 ducks (if the farm uses other than a liquid manure handling system).

(13) 5,000 ducks (if the farm uses a liquid manure handling system).

(h) Any release to the air of a hazardous substance from animal waste at farms from animals that are not stabled or otherwise confined.

[73 FR 65462, Nov. 3, 2008, as amended at 73 FR 76960, Dec. 18, 2008]

§355.32   Which emergency release notification requirements apply to continuous releases?

If the release of an EHS or CERCLA hazardous substance is continuous and stable in quantity and rate at your facility as defined in 40 CFR 302.8(b), then the release qualifies for reduced reporting requirements under this subpart. Under these reduced reporting requirements, you do not need to provide the notifications required under §355.40. However, in addition to the notifications required under 40 CFR 302.8, you must make all of the following notifications to the community emergency coordinator for the LEPC for any area likely to be affected by the release and to the SERC of any State likely to be affected by the release:

(a) Initial notifications as specified in 40 CFR 302.8 (d) and (e).

(b) Notification of a “statistically significant increase,” defined in 40 CFR 302.8(b) as any increase above the upper bound of the reported normal range.

(c) Notification of a “new release” as specified in 40 CFR 302.8(g)(1).

(d) Notification of a change in the normal range of the release as specified under 40 CFR 302.8(g)(2).

§355.33   What release quantities of EHSs and CERCLA hazardous substances trigger the emergency release notification requirements of this subpart?

The release of a reportable quantity (RQ) of an EHS or CERCLA hazardous substance within any 24-hour period triggers the emergency release notification requirements. RQs for EHSs are listed in Appendices A and B of this part in the column labeled “reportable quantity.” RQs for CERCLA hazardous substances are listed in Table 302.4 of 40 CFR 302.4 in the column labeled “final RQ.”

How To Comply

§355.40   What information must I provide?

You must make two separate notifications to comply with the emergency release notification requirements of this subpart: an immediate notification, and as soon as practicable thereafter a written follow-up emergency notification (or notifications, as more information becomes available).

(a) Immediate notification. The notice required under this section shall include as much of the following information known at the time. However, the retrieval of this information should not cause a delay in the notification on the emergency response.

(1) The chemical name or identity of any substance involved in the release.

(2) Indicate whether the substance is an EHS.

(3) Provide an estimate of the quantity of any such substance that was released into the environment.

(4) State the time and duration of the release.

(5) The medium or media into which the release occurred.

(6) Any known or anticipated acute or chronic health risks associated with the emergency and, where appropriate, advice regarding medical attention necessary for exposed individuals.

(7) Proper precautions to take as a result of the release, including evacuation (unless such information is readily available to the community emergency coordinator pursuant to the emergency plan).

(8) The name and telephone number of the individual (or individuals) to be contacted for further information.

(b) Written follow-up emergency notification. Except for releases that occur during transportation or from storage incident to transportation, you must provide a written follow-up emergency notice (or notices, as more information becomes available), as soon as practicable after the release. In the written follow-up emergency notice, you must provide and update the information required in the immediate notification and include additional information with respect to all of the following:

(1) Actions taken to respond and contain the release.

(2) Any known or anticipated acute or chronic health risks associated with the release.

(3) Where appropriate, advice regarding medical attention necessary for exposed individuals.

(c) You are not required to submit a written follow-up notification for a release that occurred during transportation or from storage incident to transportation. See §355.42(b) for requirements for reporting such releases.

§355.41   In what format should the information be submitted?

The immediate notification, described in §355.40(a), should be oral. The follow-up emergency notification, described in §355.40(b), shall be in writing. EPA does not specify a particular format for the written follow-up emergency notification.

Note: The LEPC may request a specific format for this information.

§355.42   To whom must I submit the information?

(a) You must provide the immediate emergency release notification information and the written follow-up notification to:

(1) The community emergency coordinator for the LEPC of any area likely to be affected by the release (if there is no LEPC, notify the relevant local emergency response personnel); and

(2) The SERC of any State likely to be affected by the release.

(b) For a release that occurs during transportation or from storage incident to transportation, you may meet the requirements of this subpart by notifying the 911 operator (or in the absence of a 911 emergency telephone number, the operator) of the immediate notification information listed in §355.40(a). You are not required under this subpart to submit a written follow-up notification, as described in §355.40(b), for such a release.

§355.43   When must I submit the information?

(a) You must provide the required emergency release notification information described under §355.40(a), immediately.

(b) You must provide the written follow-up emergency notice (or notices, as more information becomes available) described under §355.40(b), as soon as practicable after the release.

Subpart D—Additional Provisions

§355.60   What is the relationship between the emergency release notification requirements of this part and the release notification requirements of CERCLA?

The emergency release notification requirements of this part are in addition to the release notification requirements of CERCLA. If you have a release of a CERCLA hazardous substance, you must comply with the emergency release notification requirements of this part and the release notification requirements of CERCLA section 103, codified at 40 CFR part 302. Use this table to determine which emergency release notification requirements apply to your release:

If a reportable quantity of a substance is released within a 24-hour period at your facility And if the release is reportable under EPCRA Section 304, you must And if the release is reportable under CERCLA Section 103, you must
(a) And the substance is on BOTH the list of EHSs (Appendices A and B of this part) AND the list of CERCLA Hazardous Substances (40 CFR 302.4)Notify the LEPC and the SERC in accordance with §§355.40 through 355.43 of this part (except for a release during transportation or from storage incident to transportation; see §355.42(b))Comply with the release notification requirements of CERCLA section 103 and its implementing regulations (40 CFR part 302). Call the NRC at 800-424-8802.
(b) And the substance is on the list of CERCLA Hazardous Substances (40 CFR 302.4) and not on the list of EHSs (Appendices A and B of this part)Notify the LEPC and the SERC, in accordance with §§355.40 through 355.43 of this part (except for a release during transportation or from storage incident to transportation; see in §355.42(b))Comply with the release notification requirements of CERCLA section 103 and its implementing regulations (40 CFR part 302). Call the NRC at 800-424-8802.
(c) And the substance is on the list of EHSs (Appendices A and B of this part) and not the list of CERCLA Hazardous Substances (40 CFR 302.4)Notify the LEPC and the SERC in accordance with §§355.40 through 355.43 of this part (except for a release during transportation or from storage incident to transportation; see §355.42(b))

Note: This table only applies to reportable releases, not to exempt releases.

§355.61   How are key words in this part defined?

Animal waste means manure (feces, urine, and other excrement produced by livestock), digestive emissions, and urea. The definition includes animal waste when mixed or commingled with bedding, compost, feed, soil and other typical materials found with animal waste.

CERCLA means the Comprehensive Environmental Response, Compensation and Liability Act of 1980, as amended.

CERCLA hazardous substance means a substance defined in section 101(14) of CERCLA and listed in Table 302.4 of 40 CFR 302.4.

Chief Executive Officer of the Tribe means the person who is recognized by the Bureau of Indian Affairs as the chief elected administrative officer of the Tribe.

Environment includes water, air, and land and the interrelationship that exists among and between water, air, and land and all living things.

EPCRA means the Emergency Planning and Community Right-To-Know Act of 1986.

Extremely hazardous substance (EHS) means a substance listed in Appendices A and B of this part.

Facility means all buildings, equipment, structures, and other stationary items that are located on a single site or on contiguous or adjacent sites and that are owned or operated by the same person (or by any person that controls, is controlled by, or under common control with, such person). Facility includes manmade structures, as well as all natural structures in which chemicals are purposefully placed or removed through human means such that it functions as a containment structure for human use. For purposes of emergency release notification, the term includes motor vehicles, rolling stock, and aircraft.

Farm means a facility on a tract of land devoted to the production of crops or raising of animals, including fish, which produced and sold, or normally would have produced and sold, $1,000 or more of agricultural products during a year.

Hazardous chemical means any hazardous chemical as defined under 29 CFR 1910.1200(c), except that this term does not include:

(1) Any food, food additive, color additive, drug, or cosmetic regulated by the Food and Drug Administration.

(2) Any substance present as a solid in any manufactured item to the extent exposure to the substance does not occur under normal conditions of use.

(3) Any substance to the extent it is used:

(i) For personal, family, or household purposes, or is present in the same form and concentration as a product packaged for distribution and use by the general public. Present in the same form and concentration as a product packaged for distribution and use by the general public means a substance packaged in a similar manner and present in the same concentration as the substance when packaged for use by the general public, whether or not it is intended for distribution to the general public or used for the same purpose as when it is packaged for use by the general public;

(ii) In a research laboratory or hospital or other medical facility under the direct supervision of a technically qualified individual; or

(iii) In routine agricultural operations or is a fertilizer held for sale by a retailer to the ultimate customer.

Indian Country means Indian country defined in 18 U.S.C. 1151 as:

(1) All land within the limits of any Indian reservation under the jurisdiction of the United States government, notwithstanding the issuance of any patent, and, including rights-of-way running through the reservation;

(2) All dependent Indian communities within the borders of the United States whether within the original or subsequently acquired territory thereof, and whether within or without the limits of a State; and

(3) All Indian allotments, the Indian titles to which have not been extinguished, including rights-of-way running through the same.

Indian Tribe or Tribe means those Tribes federally recognized by the Secretary of the Interior.

LEPC means the Local Emergency Planning Committee appointed by the State Emergency Response Commission.

Medium or media means the environment (i.e., air, water, land).

Mixture means, for the purposes of 40 CFR part 355, a heterogeneous association of substances where the various individual substances retain their identities and can usually be separated by mechanical means. This definition includes, for the purposes of 40 CFR part 355, solutions but does not include alloys or amalgams.

Non-reactive solid means any substance listed in Appendix A or B of this part with two threshold planning quantity values, the higher TPQ being 10,000 pounds.

Person means any individual, trust, firm, joint stock company, corporation (including a government corporation), partnership, association, State, municipality, commission, political subdivision of a State, or interstate body.

Reactive solid means any extremely hazardous substance denoted with “a” in the “Notes” column in Appendix A or B of this part.

Release means any spilling, leaking, pumping, pouring, emitting, emptying, discharging, injecting, escaping, leaching, dumping, or disposing into the environment (including the abandonment or discarding of barrels, containers, and other closed receptacles) of any hazardous chemical, EHS, or CERCLA hazardous substance.

Reportable quantity means, for any CERCLA hazardous substance, the quantity established in Table 302.4 of 40 CFR 302.4, for such substance. For any EHS, reportable quantity means the quantity established in Appendices A and B of this part for such substance. Unless and until superseded by regulations establishing a reportable quantity for newly listed EHSs or CERCLA hazardous substances, a weight of 1 pound shall be the reportable quantity.

SERC means the State Emergency Response Commission for the State in which the facility is located except where the facility is located in Indian Country, in which case, SERC means the Emergency Response Commission for the Tribe under whose jurisdiction the facility is located. In the absence of a SERC for a State or Indian Tribe, the Governor or the chief executive officer of the tribe, respectively, shall be the SERC. Where there is a cooperative agreement between a State and a Tribe, the SERC shall be the entity identified in the agreement.

Solution means any aqueous or organic solutions, slurries, viscous solutions, suspensions, emulsions, or pastes.

State means any State of the United States, the District of Columbia, the Commonwealth of Puerto Rico, Guam, American Samoa, the United States Virgin Islands, the Northern Mariana Islands, any other territory or possession over which the United States has jurisdiction and Indian Country.

Threshold planning quantity means, for a substance listed in Appendices A and B of this part, the quantity listed in the column “threshold planning quantity” for that substance.

[73 FR 65462, Nov. 3, 2008, as amended at 73 FR 76960, Dec. 18, 2008; 77 FR 16688, Mar. 22, 2012]

Appendix A to Part 355—The List of Extremely Hazardous Substances and Their Threshold Planning Quantities

[Alphabetical Order]

CAS No.Chemical name Notes Reportable quantity*
(pounds)
Threshold planning quantity
(pounds)
75-86-5Acetone Cyanohydrin101,000
1752-30-3Acetone Thiosemicarbazide1,0001,000/10,000
107-02-8Acrolein1500
79-06-1Acrylamidef5,0001,000/10,000
107-13-1Acrylonitrilef10010,000
814-68-6Acrylyl Chlorided100100
111-69-3Adiponitrilef1,0001,000
116-06-3Aldicarbb1100/10,000
309-00-2Aldrin1500/10,000
107-18-6Allyl Alcohol1001,000
107-11-9Allylamine500500
20859-73-8Aluminum Phosphidea100500
54-62-6Aminopterin500500/10,000
78-53-5Amiton500500
3734-97-2Amiton Oxalate100100/10,000
7664-41-7Ammoniaf100500
300-62-9Amphetamine1,0001,000
62-53-3Anilinef5,0001,000
88-05-1Aniline, 2,4,6-Trimethyl-500500
7783-70-2Antimony Pentafluoride500500
1397-94-0Antimycin Ab1,0001,000/10,000
86-88-4ANTU100500/10,000
1303-28-2Arsenic Pentoxide1100/10,000
1327-53-3Arsenous Oxided1100/10,000
7784-34-1Arsenous Trichloride1500
7784-42-1Arsine100100
2642-71-9Azinphos-Ethyl100100/10,000
86-50-0Azinphos-Methyl110/10,000
98-87-3Benzal Chloride5,000500
98-16-8Benzenamine, 3-(Trifluoromethyl)-500500
100-14-1Benzene, 1-(Chloromethyl)-4-Nitro-500500/10,000
98-05-5Benzenearsonic Acid1010/10,000
3615-21-2Benzimidazole, 4,5-Dichloro-2-(Trifluoromethyl)-c500500/10,000
98-07-7Benzotrichloride10100
100-44-7Benzyl Chloride100500
140-29-4Benzyl Cyanided500500
15271-41-7Bicyclo[2.2.1]Heptane-2-Carbonitrile, 5-Chloro-6-((((Methylamino)Carbonyl)Oxy)Imino)-, (1s-(1-alpha,2-beta,4-alpha,5-alpha,6E))-500500/10,000
534-07-6Bis(Chloromethyl) Ketone1010/10,000
4044-65-9Bitoscanate500500/10,000
10294-34-5Boron Trichloride500500
7637-07-2Boron Trifluoride500500
353-42-4Boron Trifluoride Compound With Methyl Ether (1:1)1,0001,000
28772-56-7Bromadiolone100100/10,000
7726-95-6Brominef500500
1306-19-0Cadmium Oxide100100/10,000
2223-93-0Cadmium Stearateb1,0001,000/10,000
7778-44-1Calcium Arsenate1500/10,000
8001-35-2Camphechlor1500/10,000
56-25-7Cantharidin100100/10,000
51-83-2Carbachol Chloride500500/10,000
26419-73-8Carbamic Acid, Methyl-, O-(((2,4-Dimethyl-1, 3-Dithiolan-2-yl)Methylene)Amino)-100100/10,000
1563-66-2Carbofuran1010/10,000
75-15-0Carbon Disulfidef10010,000
786-19-6Carbophenothion500500
57-74-9Chlordane11,000
470-90-6Chlorfenvinfos500500
7782-50-5Chlorine10100
24934-91-6Chlormephos500500
999-81-5Chlormequat Chlorided100100/10,000
79-11-8Chloroacetic Acid100100/10,000
107-07-3Chloroethanol500500
627-11-2Chloroethyl Chloroformate1,0001,000
67-66-3Chloroformf1010,000
542-88-1Chloromethyl Etherd10100
107-30-2Chloromethyl Methyl Etherb10100
3691-35-8Chlorophacinone100100/10,000
1982-47-4Chloroxuron500500/10,000
21923-23-9Chlorthiophosd500500
10025-73-7Chromic Chloride11/10,000
62207-76-5Cobalt, ((2,2′-(1,2-Ethanediylbis (Nitrilomethylidyne)) Bis(6-Fluorophenolato))(2-)-N,N′,O,O′)-100100/10,000
10210-68-1Cobalt Carbonyld1010/10,000
64-86-8Colchicined1010/10,000
56-72-4Coumaphos10100/10,000
5836-29-3Coumatetralyl500500/10,000
95-48-7Cresol, o-1001,000/10,000
535-89-7Crimidine100100/10,000
4170-30-3Crotonaldehyde1001,000
123-73-9Crotonaldehyde, (E)-1001,000
506-68-3Cyanogen Bromide1,000500/10,000
506-78-5Cyanogen Iodide1,0001,000/10,000
2636-26-2Cyanophos1,0001,000
675-14-9Cyanuric Fluoride100100
66-81-9Cycloheximide100100/10,000
108-91-8Cyclohexylaminef10,00010,000
17702-41-9Decaborane(14)500500/10,000
8065-48-3Demeton500500
919-86-8Demeton-S-Methyl500500
10311-84-9Dialifor100100/10,000
19287-45-7Diborane100100
111-44-4Dichloroethyl ether1010,000
149-74-6Dichloromethylphenylsilane1,0001,000
62-73-7Dichlorvos101,000
141-66-2Dicrotophos100100
1464-53-5Diepoxybutane10500
814-49-3Diethyl Chlorophosphated500500
71-63-6Digitoxinb100100/10,000
2238-07-5Diglycidyl Ether1,0001,000
20830-75-5Digoxind1010/10,000
115-26-4Dimefox500500
60-51-5Dimethoate10500/10,000
2524-03-0Dimethyl Phosphorochloridothioate500500
77-78-1Dimethyl sulfate100500
75-78-5Dimethyldichlorosilaned500500
57-14-7Dimethylhydrazine101,000
99-98-9Dimethyl-p-Phenylenediamine1010/10,000
644-64-4Dimetilan1500/10,000
534-52-1Dinitrocresol1010/10,000
88-85-7Dinoseb1,000100/10,000
1420-07-1Dinoterb500500/10,000
78-34-2Dioxathion500500
82-66-6Diphacinone1010/10,000
152-16-9Diphosphoramide, Octamethyl-100100
298-04-4Disulfoton1500
514-73-8Dithiazanine Iodide500500/10,000
541-53-7Dithiobiuret100100/10,000
316-42-7Emetine, Dihydrochlorided11/10,000
115-29-7Endosulfan110/10,000
2778-04-3Endothion500500/10,000
72-20-8Endrin1500/10,000
106-89-8Epichlorohydrinf1001,000
2104-64-5EPN100100/10,000
50-14-6Ergocalciferolb1,0001,000/10,000
379-79-3Ergotamine Tartrate500500/10,000
1622-32-8Ethanesulfonyl Chloride, 2-Chloro-500500
10140-87-1Ethanol, 1,2-Dichloro-, Acetate1,0001,000
563-12-2Ethion101,000
13194-48-4Ethoprophos1,0001,000
538-07-8Ethylbis(2-Chloroethyl)Amined500500
371-62-0Ethylene Fluorohydrinb, d1010
75-21-8Ethylene Oxidef101,000
107-15-3Ethylenediamine5,00010,000
151-56-4Ethyleneimine1500
542-90-5Ethylthiocyanate10,00010,000
22224-92-6Fenamiphos1010/10,000
115-90-2Fensulfothiond500500
4301-50-2Fluenetil100100/10,000
7782-41-4Fluorinee10500
640-19-7Fluoroacetamide100100/10,000
144-49-0Fluoroacetic Acid1010/10,000
359-06-8Fluoroacetyl Chlorideb1010
51-21-8Fluorouracil500500/10,000
944-22-9Fonofos500500
50-00-0Formaldehydef100500
107-16-4Formaldehyde Cyanohydrind1,0001,000
23422-53-9Formetanate Hydrochlorided100500/10,000
2540-82-1Formothion100100
17702-57-7Formparanate100100/10,000
21548-32-3Fosthietan500500
3878-19-1Fuberidazole100100/10,000
110-00-9Furan100500
13450-90-3Gallium Trichloride500500/10,000
77-47-4Hexachlorocyclopentadiened10100
4835-11-4Hexamethylenediamine, N,N′-Dibutyl-500500
302-01-2Hydrazine11,000
74-90-8Hydrocyanic Acid10100
7647-01-0Hydrogen Chloride (gas only)f5,000500
7664-39-3Hydrogen Fluoride100100
7722-84-1Hydrogen Peroxide (Conc >52%)f1,0001,000
7783-07-5Hydrogen Selenide1010
7783-06-4Hydrogen Sulfidef100500
123-31-9Hydroquinonef100500/10,000
13463-40-6Iron, Pentacarbonyl-100100
297-78-9Isobenzan100100/10,000
78-82-0Isobutyronitriled1,0001,000
102-36-3Isocyanic Acid, 3,4-Dichlorophenyl Ester500500/10,000
465-73-6Isodrin1100/10,000
55-91-4Isofluorphateb100100
4098-71-9Isophorone Diisocyanateg500500
108-23-6Isopropyl Chloroformate1,0001,000
119-38-0Isopropylmethyl-pyrazolyl Dimethylcarbamate100500
78-97-7Lactonitrile1,0001,000
21609-90-5Leptophos500500/10,000
541-25-3Lewisiteb, d1010
58-89-9Lindane11,000/10,000
7580-67-8Lithium Hydridea100100
109-77-3Malononitrile1,000500/10,000
12108-13-3Manganese, Tricarbonyl Methylcyclopentadienyld100100
51-75-2Mechlorethamineb1010
950-10-7Mephosfolan500500
1600-27-7Mercuric Acetate500500/10,000
7487-94-7Mercuric Chloride500500/10,000
21908-53-2Mercuric Oxide500500/10,000
10476-95-6Methacrolein Diacetate1,0001,000
760-93-0Methacrylic Anhydride500500
126-98-7Methacrylonitriled1,000500
920-46-7Methacryloyl Chloride100100
30674-80-7Methacryloyloxyethyl Isocyanated100100
10265-92-6Methamidophos100100/10,000
558-25-8Methanesulfonyl Fluoride1,0001,000
950-37-8Methidathion500500/10,000
2032-65-7Methiocarb10500/10,000
16752-77-5Methomyld100500/10,000
151-38-2Methoxyethylmercuric Acetate500500/10,000
80-63-7Methyl 2-Chloroacrylate500500
74-83-9Methyl Bromidef1,0001,000
79-22-1Methyl Chloroformated1,000500
60-34-4Methyl Hydrazine10500
624-83-9Methyl Isocyanate10500
556-61-6Methyl Isothiocyanatea500500
74-93-1Methyl Mercaptanf100500
3735-23-7Methyl Phenkapton500500
676-97-1Methyl Phosphonic Dichloridea100100
556-64-9Methyl Thiocyanate10,00010,000
78-94-4Methyl Vinyl Ketone1010
502-39-6Methylmercuric Dicyanamide500500/10,000
75-79-6Methyltrichlorosilaned500500
1129-41-5Metolcarb1,000100/10,000
7786-34-7Mevinphos10500
315-18-4Mexacarbated1,000500/10,000
50-07-7Mitomycin C10500/10,000
6923-22-4Monocrotophos1010/10,000
2763-96-4Muscimol1,000500/10,000
505-60-2Mustard Gasd500500
13463-39-3Nickel Carbonyl101
54-11-5Nicotineb100100
65-30-5Nicotine Sulfate100100/10,000
7697-37-2Nitric Acid1,0001,000
10102-43-9Nitric Oxideb10100
98-95-3Nitrobenzenef1,00010,000
1122-60-7Nitrocyclohexane500500
10102-44-0Nitrogen Dioxide10100
62-75-9Nitrosodimethylamined101,000
991-42-4Norbormide100100/10,000
   Organorhodium Complex (PMN-82-147)1010/10,000
630-60-4Ouabainb100100/10,000
23135-22-0Oxamyl100100/10,000
78-71-7Oxetane, 3,3-Bis(Chloromethyl)-500500
2497-07-6Oxydisulfotond500500
10028-15-6Ozone100100
1910-42-5Paraquat Dichloride1010/10,000
2074-50-2Paraquat Methosulfate1010/10,000
56-38-2Parathionb10100
298-00-0Parathion-Methylb100100/10,000
12002-03-8Paris Green1500/10,000
19624-22-7Pentaborane500500
2570-26-5Pentadecylamine100100/10,000
79-21-0Peracetic Acid500500
594-42-3Perchloromethylmercaptan100500
108-95-2Phenol1,000500/10,000
4418-66-0Phenol, 2,2′-Thiobis(4-Chloro-6-Methyl)-100100/10,000
64-00-6Phenol, 3-(1-Methylethyl)-, Methylcarbamate10500/10,000
58-36-6Phenoxarsine, 10,10′-Oxydi-500500/10,000
696-28-6Phenyl Dichloroarsined1500
59-88-1Phenylhydrazine Hydrochloride1,0001,000/10,000
62-38-4Phenylmercury Acetate100500/10,000
2097-19-0Phenylsilatraned100100/10,000
103-85-5Phenylthiourea100100/10,000
298-02-2Phorate1010
4104-14-7Phosacetim100100/10,000
947-02-4Phosfolan100100/10,000
75-44-5Phosgenef1010
13171-21-6Phosphamidon100100
7803-51-2Phosphine100500
2703-13-1Phosphonothioic Acid, Methyl-, O-Ethyl O-(4-(Methylthio) Phenyl) Ester500500
50782-69-9Phosphonothioic Acid, Methyl-, S-(2-(Bis(1Methylethyl)Amino)Ethyl) O-Ethyl Ester100100
2665-30-7Phosphonothioic Acid, Methyl-, O-(4-Nitrophenyl) O-Phenyl Ester500500
3254-63-5Phosphoric Acid, Dimethyl 4-(Methylthio)Phenyl Ester500500
2587-90-8Phosphorothioic Acid, O,O-Dimethyl-S-(2-Methylthio) Ethyl Esterb, c500500
7723-14-0Phosphorusa, d1100
10025-87-3Phosphorus Oxychloride1,000500
10026-13-8Phosphorus Pentachloridea500500
7719-12-2Phosphorus Trichloride1,0001,000
57-47-6Physostigmine100100/10,000
57-64-7Physostigmine, Salicylate (1:1)100100/10,000
124-87-8Picrotoxin500500/10,000
110-89-4Piperidine1,0001,000
23505-41-1Pirimifos-Ethyl1,0001,000
10124-50-2Potassium Arsenite1500/10,000
151-50-8Potassium Cyanidea10100
506-61-6Potassium Silver Cyanidea1500
2631-37-0Promecarbd1,000500/10,000
106-96-7Propargyl Bromide1010
57-57-8Propiolactone, Beta-10500
107-12-0Propionitrile10500
542-76-7Propionitrile, 3-Chloro-1,0001,000
70-69-9Propiophenone, 4-Amino-c100100/10,000
109-61-5Propyl Chloroformate500500
75-56-9Propylene Oxidef10010,000
75-55-8Propyleneimine110,000
2275-18-5Prothoate100100/10,000
129-00-0Pyreneb5,0001,000/10,000
140-76-1Pyridine, 2-Methyl-5-Vinyl-500500
504-24-5Pyridine, 4-Amino-d1,000500/10,000
1124-33-0Pyridine, 4-Nitro-,l-Oxide500500/10,000
53558-25-1Pyriminild100100/10,000
14167-18-1Salcomine500500/10,000
107-44-8Sarind1010
7783-00-8Selenious Acid101,000/10,000
7791-23-3Selenium Oxychloride500500
563-41-7Semicarbazide Hydrochloride1,0001,000/10,000
3037-72-7Silane, (4-Aminobutyl)Diethoxymethyl-1,0001,000
7631-89-2Sodium Arsenate11,000/10,000
7784-46-5Sodium Arsenite1500/10,000
26628-22-8Sodium Azide (Na(N3))a1,000500
124-65-2Sodium Cacodylate100100/10,000
143-33-9Sodium Cyanide (Na(CN))a10100
62-74-8Sodium Fluoroacetate1010/10,000
13410-01-0Sodium Selenate100100/10,000
10102-18-8Sodium Selenited100100/10,000
10102-20-2Sodium Tellurite500500/10,000
900-95-8Stannane, Acetoxytriphenyl-c500500/10,000
57-24-9Strychnineb10100/10,000
60-41-3Strychnine Sulfate10100/10,000
3689-24-5Sulfotep100500
3569-57-1Sulfoxide, 3-Chloropropyl Octyl500500
7446-09-5Sulfur Dioxidef500500
7783-60-0Sulfur Tetrafluoride100100
7446-11-9Sulfur Trioxidea100100
7664-93-9Sulfuric Acid1,0001,000
77-81-6Tabunb, d1010
7783-80-4Tellurium Hexafluoridee100100
107-49-3TEPP10100
13071-79-9Terbufosd100100
78-00-2Tetraethylleadb10100
597-64-8Tetraethyltinb100100
75-74-1Tetramethylleadb, f100100
509-14-8Tetranitromethane10500
10031-59-1Thallium Sulfated100100/10,000
6533-73-9Thallous Carbonateb, d100100/10,000
7791-12-0Thallous Chlorideb, d100100/10,000
2757-18-8Thallous Malonateb, d100100/10,000
7446-18-6Thallous Sulfate100100/10,000
2231-57-4Thiocarbazide1,0001,000/10,000
39196-18-4Thiofanox100100/10,000
297-97-2Thionazin100500
108-98-5Thiophenol100500
79-19-6Thiosemicarbazide100100/10,000
5344-82-1Thiourea, (2-Chlorophenyl)-100100/10,000
614-78-8Thiourea, (2-Methylphenyl)-500500/10,000
7550-45-0Titanium Tetrachloride1,000100
584-84-9Toluene 2,4-Diisocyanate100500
91-08-7Toluene 2,6-Diisocyanate100100
110-57-6Trans-1,4-Dichlorobutene500500
1031-47-6Triamiphos500500/10,000
24017-47-8Triazofos500500
76-02-8Trichloroacetyl Chloride500500
115-21-9Trichloroethylsilaned500500
327-98-0Trichloronatee500500
98-13-5Trichlorophenylsilaned500500
1558-25-4Trichloro(Chloromethyl)Silane100100
27137-85-5Trichloro(Dichlorophenyl) Silane500500
998-30-1Triethoxysilane500500
75-77-4Trimethylchlorosilane1,0001,000
824-11-3Trimethylolpropane Phosphited100100/10,000
1066-45-1Trimethyltin Chloride500500/10,000
639-58-7Triphenyltin Chloride500500/10,000
555-77-1Tris(2-Chloroethyl)Amined100100
2001-95-8Valinomycinb1,0001,000/10,000
1314-62-1Vanadium Pentoxide1,000100/10,000
108-05-4Vinyl Acetate Monomerf5,0001,000
81-81-2Warfarin100500/10,000
129-06-6Warfarin Sodiumd100100/10,000
28347-13-9Xylylene Dichloride100100/10,000
58270-08-9Zinc, Dichloro(4,4-Dimethyl-5((((Methylamino)Carbonyl) Oxy)Imino)Pentanenitrile)-, (T-4)-100100/10,000
1314-84-7Zinc Phosphidea100500

*Only the statutory or final RQ is shown. For more information, see 40 CFR 355.61.

Notes:

a. This material is a reactive solid. The TPQ does not default to 10,000 pounds for non-powder, non-molten, non-solution form.

b. The calculated TPQ changed after technical review as described in a technical support document for the final rule, April 22, 1987.

c. Chemicals added by final rule, April 22, 1987.

d. Revised TPQ based on new or re-evaluated toxicity data, April 22, 1987.

e. The TPQ was revised due to calculation error, April 22, 1987.

f. Chemicals on the original list that do not meet toxicity criteria but because of their acute lethality, high production volume and known risk are considered chemicals of concern (“Other chemicals”), November 17, 1986 and February 15, 1990.

g. The TPQ was recalculated (September 8, 2003) since it was mistakenly calculated in the April 22, 1987 final rule under the wrong assumption that this chemical is a reactive solid, when in fact it is a liquid. RQ for this chemical was adjusted on September 11, 2006.

Appendix B to Part 355—The List of Extremely Hazardous Substances and Their Threshold Planning Quantities

[CAS Number Order]

CAS No.Chemical nameNotesReportable quantity*
(pounds)
Threshold planning quantity
(pounds)
0Organorhodium Complex (PMN-82-147)1010/10,000
50-00-0Formaldehydef100500
50-07-7Mitomycin C10500/10,000
50-14-6Ergocalciferolb1,0001,000/10,000
51-21-8Fluorouracil500500/10,000
51-75-2Mechlorethamineb1010
51-83-2Carbachol Chloride500500/10,000
54-11-5Nicotineb100100
54-62-6Aminopterin500500/10,000
55-91-4Isofluorphateb100100
56-25-7Cantharidin100100/10,000
56-38-2Parathionb10100
56-72-4Coumaphos10100/10,000
57-14-7Dimethylhydrazine101,000
57-24-9Strychnineb10100/10,000
57-47-6Physostigmine100100/10,000
57-57-8Propiolactone, Beta-10500
57-64-7Physostigmine, Salicylate (1:1)100100/10,000
57-74-9Chlordane11,000
58-36-6Phenoxarsine, 10,10′-Oxydi-500500/10,000
58-89-9Lindane11,000/10,000
59-88-1Phenylhydrazine Hydrochloride1,0001,000/10,000
60-34-4Methyl Hydrazine10500
60-41-3Strychnine sulfate10100/10,000
60-51-5Dimethoate10500/10,000
62-38-4Phenylmercury Acetate100500/10,000
62-53-3Anilinef5,0001,000
62-73-7Dichlorvos101,000
62-74-8Sodium Fluoroacetate1010/10,000
62-75-9Nitrosodimethylamined101,000
64-00-6Phenol, 3-(1-Methylethyl)-, Methylcarbamate10500/10,000
64-86-8Colchicined1010/10,000
65-30-5Nicotine sulfate100100/10,000
66-81-9Cycloheximide100100/10,000
67-66-3Chloroformf1010,000
70-69-9Propiophenone, 4-Amino-c100100/10,000
71-63-6Digitoxinb100100/10,000
72-20-8Endrin1500/10,000
74-83-9Methyl Bromidef1,0001,000
74-90-8Hydrocyanic Acid10100
74-93-1Methyl Mercaptanf100500
75-15-0Carbon Disulfidef10010,000
75-21-8Ethylene Oxidef101,000
75-44-5Phosgenef1010
75-55-8Propyleneimine110,000
75-56-9Propylene Oxidef10010,000
75-74-1Tetramethylleadb, f100100
75-77-4Trimethylchlorosilane1,0001,000
75-78-5Dimethyldichlorosilaned500500
75-79-6Methyltrichlorosilaned500500
75-86-5Acetone Cyanohydrin101,000
76-02-8Trichloroacetyl Chloride500500
77-47-4Hexachlorocyclopentadiened10100
77-78-1Dimethyl Sulfate100500
77-81-6Tabunb, d1010
78-00-2Tetraethylleadb10100
78-34-2Dioxathion500500
78-53-5Amiton500500
78-71-7Oxetane, 3,3-Bis(Chloromethyl)-500500
78-82-0Isobutyronitriled1,0001,000
78-94-4Methyl Vinyl Ketone1010
78-97-7Lactonitrile1,0001,000
79-06-1Acrylamidef5,0001,000/10,000
79-11-8Chloroacetic Acid100100/10,000
79-19-6Thiosemicarbazide100100/10,000
79-21-0Peracetic Acid500500
79-22-1Methyl Chloroformated1,000500
80-63-7Methyl 2-Chloroacrylate500500
81-81-2Warfarin100500/10,000
82-66-6Diphacinone1010/10,000
86-50-0Azinphos-Methyl110/10,000
86-88-4ANTU100500/10,000
88-05-1Aniline, 2,4,6-Trimethyl-500500
88-85-7Dinoseb1,000100/10,000
91-08-7Toluene 2,6-Diisocyanate100100
95-48-7Cresol, o-1001,000/10,000
98-05-5Benzenearsonic Acid1010/10,000
98-07-7Benzotrichloride10100
98-13-5Trichlorophenylsilaned500500
98-16-8Benzenamine, 3-(Trifluoromethyl)-500500
98-87-3Benzal Chloride5,000500
98-95-3Nitrobenzenef1,00010,000
99-98-9Dimethyl-p-Phenylenediamine1010/10,000
100-14-1Benzene, 1-(Chloromethyl)-4-Nitro-500500/10,000
100-44-7Benzyl Chloride100500
102-36-3Isocyanic Acid, 3,4-Dichlorophenyl Ester500500/10,000
103-85-5Phenylthiourea100100/10,000
106-89-8Epichlorohydrinf1001,000
106-96-7Propargyl Bromide1010
107-02-8Acrolein1500
107-07-3Chloroethanol500500
107-11-9Allylamine500500
107-12-0Propionitrile10500
107-13-1Acrylonitrilef10010,000
107-15-3Ethylenediamine5,00010,000
107-16-4Formaldehyde Cyanohydrind1,0001,000
107-18-6Allyl Alcohol1001,000
107-30-2Chloromethyl Methyl Etherb10100
107-44-8Sarind1010
107-49-3TEPP10100
108-05-4Vinyl Acetate Monomerf5,0001,000
108-23-6Isopropyl Chloroformate1,0001,000
108-91-8Cyclohexylaminef10,00010,000
108-95-2Phenol1,000500/10,000
108-98-5Thiophenol100500
109-61-5Propyl Chloroformate500500
109-77-3Malononitrile1,000500/10,000
110-00-9Furan100500
110-57-6Trans-1,4-Dichlorobutene500500
110-89-4Piperidine1,0001,000
111-44-4Dichloroethyl Ether1010,000
111-69-3Adiponitrilef1,0001,000
115-21-9Trichloroethylsilaned500500
115-26-4Dimefox500500
115-29-7Endosulfan110/10,000
115-90-2Fensulfothiond500500
116-06-3Aldicarbb1100/10,000
119-38-0Isopropylmethyl-pyrazolyl Dimethylcarbamate100500
123-31-9Hydroquinonef100500/10,000
123-73-9Crotonaldehyde, (E)-1001,000
124-65-2Sodium Cacodylate100100/10,000
124-87-8Picrotoxin500500/10,000
126-98-7Methacrylonitriled1,000500
129-00-0Pyreneb5,0001,000/10,000
129-06-6Warfarin Sodiumd100100/10,000
140-29-4Benzyl Cyanided500500
140-76-1Pyridine, 2-Methyl-5-Vinyl-500500
141-66-2Dicrotophos100100
143-33-9Sodium Cyanide (Na(CN))a10100
144-49-0Fluoroacetic Acid1010/10,000
149-74-6Dichloromethylphenylsilane1,0001,000
151-38-2Methoxyethylmercuric Acetate500500/10,000
151-50-8Potassium Cyanidea10100
151-56-4Ethyleneimine1500
152-16-9Diphosphoramide, Octamethyl-100100
297-78-9Isobenzan100100/10,000
297-97-2Thionazin100500
298-00-0Parathion-Methylb100100/10,000
298-02-2Phorate1010
298-04-4Disulfoton1500
300-62-9Amphetamine1,0001,000
302-01-2Hydrazine11,000
309-00-2Aldrin1500/10,000
315-18-4Mexacarbate1,000500/10,000
316-42-7Emetine, Dihydrochlorided11/10,000
327-98-0Trichloronatee500500
353-42-4Boron Trifluoride Compound With Methyl Ether (1:1)1,0001,000
359-06-8Fluoroacetyl Chlorideb1010
371-62-0Ethylene Fluorohydrinb, d1010
379-79-3Ergotamine Tartrate500500/10,000
465-73-6Isodrin1100/10,000
470-90-6Chlorfenvinfos500500
502-39-6Methylmercuric Dicyanamide500500/10,000
504-24-5Pyridine, 4-Amino-d1,000500/10,000
505-60-2Mustard Gasd500500
506-61-6Potassium Silver Cyanidea1500
506-68-3Cyanogen Bromide1,000500/10,000
506-78-5Cyanogen Iodide1,0001,000/10,000
509-14-8Tetranitromethane10500
514-73-8Dithiazanine Iodide500500/10,000
534-07-6Bis(Chloromethyl) Ketone1010/10,000
534-52-1Dinitrocresol1010/10,000
535-89-7Crimidine100100/10,000
538-07-8Ethylbis(2-Chloroethyl)Amined500500
541-25-3Lewisiteb, d1010
541-53-7Dithiobiuret100100/10,000
542-76-7Propionitrile, 3-Chloro-1,0001,000
542-88-1Chloromethyl Etherd10100
542-90-5Ethylthiocyanate10,00010,000
555-77-1Tris(2-Chloroethyl)Amined100100
556-61-6Methyl Isothiocyanatea500500
556-64-9Methyl Thiocyanate10,00010,000
558-25-8Methanesulfonyl Fluoride1,0001,000
563-12-2Ethion101,000
563-41-7Semicarbazide Hydrochloride1,0001,000/10,000
584-84-9Toluene 2,4-Diisocyanate100500
594-42-3Perchloromethylmercaptan100500
597-64-8Tetraethyltinb100100
614-78-8Thiourea, (2-Methylphenyl)-500500/10,000
624-83-9Methyl Isocyanate10500
627-11-2Chloroethyl Chloroformate1,0001,000
630-60-4Ouabainb100100/10,000
639-58-7Triphenyltin Chloride500500/10,000
640-19-7Fluoroacetamide100100/10,000
644-64-4Dimetilan1500/10,000
675-14-9Cyanuric Fluoride100100
676-97-1Methyl Phosphonic Dichloridea100100
696-28-6Phenyl Dichloroarsined1500
760-93-0Methacrylic Anhydride500500
786-19-6Carbophenothion500500
814-49-3Diethyl Chlorophosphated500500
814-68-6Acrylyl Chlorided100100
824-11-3Trimethylolpropane Phosphited100100/10,000
900-95-8Stannane, Acetoxytriphenyl-c500500/10,000
919-86-8Demeton-S-Methyl500500
920-46-7Methacryloyl Chloride100100
944-22-9Fonofos500500
947-02-4Phosfolan100100/10,000
950-10-7Mephosfolan500500
950-37-8Methidathion500500/10,000
991-42-4Norbormide100100/10,000
998-30-1Triethoxysilane500500
999-81-5Chlormequat Chlorided100100/10,000
1031-47-6Triamiphos500500/10,000
1066-45-1Trimethyltin Chloride500500/10,000
1122-60-7Nitrocyclohexane500500
1124-33-0Pyridine, 4-Nitro-,1-Oxide500500/10,000
1129-41-5Metolcarb1,000100/10,000
1303-28-2Arsenic Pentoxide1100/10,000
1306-19-0Cadmium Oxide100100/10,000
1314-62-1Vanadium Pentoxide1,000100/10,000
1314-84-7Zinc Phosphidea100500
1327-53-3Arsenous Oxided1100/10,000
1397-94-0Antimycin Ab1,0001,000/10,000
1420-07-1Dinoterb500500/10,000
1464-53-5Diepoxybutane10500
1558-25-4Trichloro(Chloromethyl)Silane100100
1563-66-2Carbofuran1010/10,000
1600-27-7Mercuric Acetate500500/10,000
1622-32-8Ethanesulfonyl Chloride, 2-Chloro-500500
1752-30-3Acetone Thiosemicarbazide1,0001,000/10,000
1910-42-5Paraquat Dichloride1010/10,000
1982-47-4Chloroxuron500500/10,000
2001-95-8Valinomycinb1,0001,000/10,000
2032-65-7Methiocarb10500/10,000
2074-50-2Paraquat Methosulfate1010/10,000
2097-19-0Phenylsilatraned100100/10,000
2104-64-5EPN100100/10,000
2223-93-0Cadmium Stearateb1,0001,000/10,000
2231-57-4Thiocarbazide1,0001,000/10,000
2238-07-5Diglycidyl Ether1,0001,000
2275-18-5Prothoate100100/10,000
2497-07-6Oxydisulfotond500500
2524-03-0Dimethyl Phosphorochloridothioate500500
2540-82-1Formothion100100
2570-26-5Pentadecylamine100100/10,000
2587-90-8Phosphorothioic Acid, O,O-Dimethyl-S-(2-Methylthio) Ethyl Esterb, c500500
2631-37-0Promecarbd1,000500/10,000
2636-26-2Cyanophos1,0001,000
2642-71-9Azinphos-Ethyl100100/10,000
2665-30-7Phosphonothioic Acid, Methyl-, O-(4-Nitrophenyl) O-Phenyl Ester500500
2703-13-1Phosphonothioic Acid, Methyl-, O-Ethyl O-(4-(Methylthio)Phenyl) Ester500500
2757-18-8Thallous Malonateb, d100100/10,000
2763-96-4Muscimol1,000500/10,000
2778-04-3Endothion500500/10,000
3037-72-7Silane, (4-Aminobutyl)Diethoxymethyl-1,0001,000
3254-63-5Phosphoric Acid, Dimethyl 4-(Methylthio)Phenyl Ester500500
3569-57-1Sulfoxide, 3-Chloropropyl Octyl500500
3615-21-2Benzimidazole, 4,5-Dichloro-2-(Trifluoromethyl)-c500500/10,000
3689-24-5Sulfotep100500
3691-35-8Chlorophacinone100100/10,000
3734-97-2Amiton Oxalate100100/10,000
3735-23-7Methyl Phenkapton500500
3878-19-1Fuberidazole100100/10,000
4044-65-9Bitoscanate500500/10,000
4098-71-9Isophorone Diisocyanateg500500
4104-14-7Phosacetim100100/10,000
4170-30-3Crotonaldehyde1001,000
4301-50-2Fluenetil100100/10,000
4418-66-0Phenol, 2,2′-Thiobis(4-Chloro-6-Methyl)-100100/10,000
4835-11-4Hexamethylenediamine, N,N′-Dibutyl-500500
5344-82-1Thiourea, (2-Chlorophenyl)-100100/10,000
5836-29-3Coumatetralyl500500/10,000
6533-73-9Thallous Carbonateb, d100100/10,000
6923-22-4Monocrotophos1010/10,000
7446-09-5Sulfur Dioxidef500500
7446-11-9Sulfur Trioxidea100100
7446-18-6Thallous Sulfate100100/10,000
7487-94-7Mercuric Chloride500500/10,000
7550-45-0Titanium Tetrachloride1,000100
7580-67-8Lithium Hydridea100100
7631-89-2Sodium Arsenate11,000/10,000
7637-07-2Boron Trifluoride500500
7647-01-0Hydrogen Chloride (gas only)f5,000500
7664-39-3Hydrogen Fluoride100100
7664-41-7Ammoniaf100500
7664-93-9Sulfuric Acid1,0001,000
7697-37-2Nitric Acid1,0001,000
7719-12-2Phosphorus Trichloride1,0001,000
7722-84-1Hydrogen Peroxide (Conc >52%)f1,0001,000
7723-14-0Phosphorusa, d1100
7726-95-6Brominef500500
7778-44-1Calcium Arsenate1500/10,000
7782-41-4Fluorinee10500
7782-50-5Chlorine10100
7783-00-8Selenious Acid101,000/10,000
7783-06-4Hydrogen Sulfidef100500
7783-07-5Hydrogen Selenide1010
7783-60-0Sulfur Tetrafluoride100100
7783-70-2Antimony Pentafluoride500500
7783-80-4Tellurium Hexafluoridee100100
7784-34-1Arsenous Trichloride1500
7784-42-1Arsine100100
7784-46-5Sodium Arsenite1500/10,000
7786-34-7Mevinphos10500
7791-12-0Thallous Chlorideb, d100100/10,000
7791-23-3Selenium Oxychloride500500
7803-51-2Phosphine100500
8001-35-2Camphechlor1500/10,000
8065-48-3Demeton500500
10025-73-7Chromic Chloride11/10,000
10025-87-3Phosphorus Oxychloride1,000500
10026-13-8Phosphorus Pentachloridea500500
10028-15-6Ozone100100
10031-59-1Thallium Sulfated100100/10,000
10102-18-8Sodium Selenited100100/10,000
10102-20-2Sodium Tellurite500500/10,000
10102-43-9Nitric Oxideb10100
10102-44-0Nitrogen Dioxide10100
10124-50-2Potassium Arsenite1500/10,000
10140-87-1Ethanol, 1,2-Dichloro-, Acetate1,0001,000
10210-68-1Cobalt Carbonyld1010/10,000
10265-92-6Methamidophos100100/10,000
10294-34-5Boron Trichloride500500
10311-84-9Dialifor100100/10,000
10476-95-6Methacrolein Diacetate1,0001,000
12002-03-8Paris Green1500/10,000
12108-13-3Manganese, Tricarbonyl Methylcyclopentadienyld100100
13071-79-9Terbufoshd100100
13171-21-6Phosphamidon100100
13194-48-4Ethoprophos1,0001,000
13410-01-0Sodium Selenate100100/10,000
13450-90-3Gallium Trichloride500500/10,000
13463-39-3Nickel Carbonyl101
13463-40-6Iron, Pentacarbonyl-100100
14167-18-1Salcomine500500/10,000
15271-41-7Bicyclo[2.2.1]Heptane-2-Carbonitrile, 5-Chloro-6-((((Methylamino)Carbonyl)Oxy)Imino)-, (1s-(1-alpha,2-beta,4-alpha,5-alpha,6E))-500500/10,000
16752-77-5Methomyld100500/10,000
17702-41-9Decaborane(14)500500/10,000
17702-57-7Formparanate100100/10,000
19287-45-7Diborane100100
19624-22-7Pentaborane500500
20830-75-5Digoxind1010/10,000
20859-73-8Aluminum Phosphidea100500
21548-32-3Fosthietan500500
21609-90-5Leptophos500500/10,000
21908-53-2Mercuric Oxide500500/10,000
21923-23-9Chlorthiophosd500500
22224-92-6Fenamiphos1010/10,000
23135-22-0Oxamyl100100/10,000
23422-53-9Formetanate Hydrochlorided100500/10,000
23505-41-1Pirimifos-Ethyl1,0001,000
24017-47-8Triazofos500500
24934-91-6Chlormephos500500
26419-73-8Carbamic Acid, Methyl-, O-(((2,4-Dimethyl-1, 3-Dithiolan-2-yl)Methylene)Amino)-100100/10,000
26628-22-8Sodium Azide (Na(N3))a1,000500
27137-85-5Trichloro(Dichlorophenyl)Silane500500
28347-13-9Xylylene Dichloride100100/10,000
28772-56-7Bromadiolone100100/10,000
30674-80-7Methacryloyloxyethyl Isocyanateh100100
39196-18-4Thiofanox100100/10,000
50782-69-9Phosphonothioic Acid, Methyl-, S-(2-(Bis(1-Methylethyl)Amino)Ethyl) O-Ethyl Ester100100
53558-25-1Pyriminild100100/10,000
58270-08-9Zinc, Dichloro(4,4-Dimethyl-5((((Methylamino) Carbonyl)Oxy)Imino)Pentanenitrile)-, (T-4)-100100/10,000
62207-76-5Cobalt, ((2,2′-(1,2-Ethanediylbis (Nitrilomethylidyne)) Bis(6-Fluorophenolato)) (2-)-N,N′,O,O′)-100100/10,000

*Only the statutory or final RQ is shown. For more information, see 40 CFR 355.61.

Notes:

a. This material is a reactive solid. The TPQ does not default to 10,000 pounds for non-powder, non-molten, non-solution form.

b. The calculated TPQ changed after technical review as described in a technical support document for the final rule, April 22, 1987.

c. Chemicals added by final rule, April 22, 1987.

d. Revised TPQ based on new or re-evaluated toxicity data, April 22, 1987.

e. The TPQ was revised due to calculation error, April 22, 1987.

f. Chemicals on the original list that do not meet toxicity criteria but because of their acute lethality, high production volume and known risk are considered chemicals of concern (“Other chemicals”). (November 17, 1986, and February 15, 1990.)

g. The TPQ was recalculated (September 8, 2003) since it was mistakenly calculated in the April 22, 1987, final rule under the wrong assumption that this chemical is a reactive solid, when in fact it is a liquid. RQ for this chemical was adjusted on September 11, 2006.



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