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Electronic Code of Federal Regulations

e-CFR data is current as of December 4, 2019

Title 40Chapter ISubchapter CPart 63Subpart LLLLLL → Subject Group


Title 40: Protection of Environment
PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES (CONTINUED)
Subpart LLLLLL—National Emission Standards for Hazardous Air Pollutants for Acrylic and Modacrylic Fibers Production Area Sources


Other Requirements and Information

§63.11397   What General Provisions apply to this subpart?

(a) You must meet the requirements of the General Provisions in 40 CFR part 63, subpart A, as shown in Table 1 to this subpart.

(b) If you own or operate an existing affected source, your notification of compliance status required by §63.9(h) must include the following information:

(1) This certification of compliance, signed by a responsible official, for the standards in §63.11395(a): “This facility complies with the management practices required in §63.11395(a) for operation of capture systems for polymerization process equipment and monomer recovery process equipment.”

(2) This certification of compliance, signed by a responsible official, for the emissions limits in §63.11395(b): “This facility complies with the emissions limits in §63.11395(b)(1) and (2) for control devices serving the polymerization process equipment and monomer recovery process equipment based on previous performance tests in accordance with §63.11395(h)” or “This facility complies with the alternative standards for process vents in §63.11395(b)(3) based on previous performance tests and assessments in accordance with §63.11396(f)”. If you conduct a performance test or assessment to demonstrate compliance, you must include the results of the performance test and/or assessment.

(3) This certification of compliance, signed by a responsible official, for the standards for storage tanks in §63.11396(d): “This facility complies with the requirements of 40 CFR part 60, subpart Kb for each tank that stores acrylonitrile.”

(4) This certification of compliance, signed by a responsible official, for the requirement in Table 1 to subpart LLLLLL for preparation of a startup, shutdown, and malfunction plan: “This facility has prepared a startup, shutdown, and malfunction plan in accordance with the requirements of 40 CFR 63.6(e)(3).”

(c) If you own or operate a new affected source, your notification of compliance status required by §63.9(h) must include:

(1) The results of the initial performance test or compliance demonstration for each process vent (including closed vent system and control device, flare, or recovery device), fiber spinning line, AN storage tank, equipment, and wastewater stream subject to this subpart.

(2) This certification of compliance, signed by a responsible official, for the applicable emissions limit in §63.11396(a) for process vents: “This facility complies with the emissions limits in §63.11396(a) for each process vent subject to control.”

(3) This certification of compliance, signed by a responsible official, for the applicable emissions limit in §63.11396(b) for each fiber spinning line: “This facility complies with the emissions limit and/or management practice requirements in §63.11396(b)(1), (2), or (3) for each fiber spinning line.”

(4) This certification of compliance, signed by a responsible official, for the storage tank requirements in §63.11396(c): “This facility complies with the requirements for storage vessels holding acrylonitrile as shown in Table 2 to §63.1103(b)(3)(i) of subpart YY.”

(5) This certification of compliance, signed by a responsible official, for the equipment leak requirements in §63.11396(d): “This facility complies with the requirements for all equipment that contains or contacts 10 percent by weight or more of AN and operates 300 hours per year or more as shown in Table 2 to §63.1103(b)(3)(i) of subpart YY.”

(6) This certification of compliance, signed by a responsible official, for the process wastewater and maintenance wastewater requirements in §63.11396(e): “This facility complies with the requirements in Table 2 to §63.1103(b)(3)(i) of subpart YY for each process wastewater stream and each maintenance wastewater stream.”

(d) If you own or operate a new affected source, you must report any deviation from the requirements of this subpart in the semiannual report required by 40 CFR 63.10(e)(3).

§63.11398   What definitions apply to this subpart?

Acrylic fiber means a manufactured synthetic fiber in which the fiber-forming substance is any long-chain synthetic polymer composed of at least 85 percent by weight of acrylonitrile units.

Acrylic and modacrylic fibers production means the production of either of the following synthetic fibers composed of acrylonitrile units: acrylic fiber or modacrylic fiber.

Acrylonitrile solution polymerization means a process where acrylonitrile and comonomers are dissolved in a solvent to form a polymer solution (typically polyacrylonitrile). The polyacrylonitrile is soluble in the solvent. In contrast to suspension polymerization, the resulting reactor polymer solution (spin dope) is filtered and pumped directly to the fiber spinning process.

Acrylonitrile suspension polymerization means a polymerization process where small drops of acrylonitrile and comonomers are suspended in water in the presence of a catalyst where they polymerize under agitation. Solid beads of polymer are formed in this suspension reaction which are subsequently filtered, washed, refiltered, and dried. The beads must be subsequently redissolved in a solvent to create a spin dope prior to introduction to the fiber spinning process.

Deviation means any instance in which an affected source subject to this subpart, or an owner or operator of such a source:

(1) Fails to meet any requirement or obligation established by this subpart, including but not limited to any emissions limitation or management practice;

(2) Fails to meet any term or condition that is adopted to implement an applicable requirement in this subpart and that is included in the operating permit for any affected source required to obtain such a permit; or

(3) Fails to meet any emissions limitation or management practice in this subpart during startup, shutdown, or malfunction, regardless of whether or not such failure is permitted by this subpart.

Equipment means each of the following that is subject to this subpart: pump, compressor, agitator, pressure relief device, sampling collection system, open-ended valve or line, valve connector, instrumentation system in organic HAP service which contains or contacts greater than 10 percent by weight of acrylonitrile and operates more than 300 hours per year.

Fiber spinning line means the group of equipment and process vents associated with acrylic or modacrylic fiber spinning operations. The fiber spinning line includes (as applicable to the type of spinning process used) the blending and dissolving tanks, spinning solution filters, wet spinning units, spin bath tanks, and the equipment used downstream of the spin bath to wash, dry, or draw the spun fiber.

Maintenance wastewater means wastewater generated by the draining of process fluid from components in the process unit, whose primary product is a product produced by a source category subject to this subpart, into an individual drain system prior to or during maintenance activities. Maintenance wastewater can be generated during planned and unplanned shutdowns and during periods not associated with a shutdown. Examples of activities that can generate maintenance wastewaters include descaling of heat exchanger tubing bundles, cleaning of distillation column traps, draining of low legs and high point bleeds, draining of pumps into an individual drain system, and draining of portions of the process unit, whose primary product is a product produced by a source category subject to this subpart, for repair.

Modacrylic fiber means a manufactured synthetic fiber in which the fiber-forming substance is any long-chain synthetic polymer composed of at least 35 percent by weight of acrylonitrile units but less than 85 percent by weight of acrylonitrile units.

Monomer recovery process equipment means the collection of process units and associated process equipment used to reclaim the monomer for subsequent reuse, including but not limited to polymer holding tanks, polymer buffer tanks, monomer vacuum pump flush drum, and drum filter vacuum pump flush drum.

Polymerization process equipment means the collection of process units and associated process equipment used in the acrylonitrile polymerization process prior to the fiber spinning line, including but not limited to acrylonitrile storage tanks, recovered monomer tanks, monomer measuring tanks, monomer preparation tanks, monomer feed tanks, slurry receiver tanks, polymerization reactors, and drum filters.

Process vent means the point of discharge to the atmosphere (or point of entry into a control device, if any) of a gas stream from the acrylic and modacrylic fibers production process.

Process wastewater means wastewater, which during manufacturing or processing, comes into direct contact with or results from the production or use of any raw material, intermediate product, finished product, by-product, or waste product.

Responsible official means responsible official as defined at 40 CFR 70.2.

Spin dope means the liquid mixture of polymer and solvent that is fed to the spinneret to form the acrylic and modacrylic fibers.

§63.11399   Who implements and enforces this subpart?

(a) This subpart can be implemented and enforced by the U.S. EPA or a delegated authority such as a State, local, or tribal agency. If the U.S. EPA Administrator has delegated authority to a State, local, or Tribal agency pursuant to 40 CFR part 63, subpart E, then that Agency has the authority to implement and enforce this subpart. You should contact your U.S. EPA Regional Office to find out if this subpart is delegated to a State, local, or tribal agency within your State.

(b) In delegating implementation and enforcement authority of this subpart to a State, local, or tribal agency under 40 CFR part 63, subpart E, the approval authorities contained in paragraphs (b)(1) through (4) of this section are retained by the Administrator of the U.S. EPA and are not transferred to the State, local, or tribal agency.

(1) Approval of an alternative non-opacity emissions standard under §63.6(g).

(2) Approval of a major change to a test method under §63.7(e)(2)(ii) and (f). A “major change to test method” is defined in §63.90.

(3) Approval of a major change to monitoring under §63.8(f). A “major change to monitoring” is defined in §63.90.

(4) Approval of a major change to recordkeeping/ reporting under §63.10(f). A “major change to recordkeeping/reporting” is defined in §63.90.

As required in §63.11397(a), you must comply with the requirements of the NESHAP General Provisions (40 CFR part 63, subpart A) as shown in the following table.

[72 FR 38899, July 16, 2007, as amended at 73 FR 15928, Mar. 26, 2008]

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