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Electronic Code of Federal Regulations

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e-CFR Data is current as of October 16, 2014

Title 49Subtitle BChapter ISubchapter CPart 179


TITLE 49—Transportation

Subtitle B—OTHER REGULATIONS RELATING TO TRANSPORTATION (CONTINUED)

CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED)

SUBCHAPTER C—HAZARDOUS MATERIALS REGULATIONS

PART 179—SPECIFICATIONS FOR TANK CARS

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Subpart A—INTRODUCTION, APPROVALS AND REPORTS

§179.1
General.
§179.2
Definitions and abbreviations.
§179.3
Procedure for securing approval.
§179.4
Changes in specifications for tank cars.
§179.5
Certificate of construction.
§179.6
Repairs and alterations.
§179.7
Quality assurance program.
§179.8
Limitation on actions by states, local governments, and Indian tribes.
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Subpart B—GENERAL DESIGN REQUIREMENTS

§179.10
Tank mounting.
§179.11
Welding certification.
§179.12
Interior heater systems.
§179.13
Tank car capacity and gross weight limitation.
§179.14
Coupler vertical restraint system.
§179.15
Pressure relief devices.
§179.16
Tank-head puncture-resistance systems.
§179.18
Thermal protection systems.
§179.20
Service equipment; protection systems.
§179.22
Marking.
§179.24
Stamping.
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Subpart C—SPECIFICATIONS FOR PRESSURE TANK CAR TANKS (CLASSES DOT-105, 109, 112, 114 AND 120)

§179.100
General specifications applicable to pressure tank car tanks.
§179.100-1
Tanks built under these specifications shall comply with the requirements of §§179.100, 179.101 and when applicable, §§179.102 and 179.103.
§179.100-3
Type.
§179.100-4
Insulation.
§179.100-6
Thickness of plates.
§179.100-7
Materials.
§179.100-8
Tank heads.
§179.100-9
Welding.
§179.100-10
Postweld heat treatment.
§179.100-12
Manway nozzle, cover and protective housing.
§179.100-13
Venting, loading and unloading valves, measuring and sampling devices.
§179.100-14
Bottom outlets.
§179.100-16
Attachments.
§179.100-17
Closures for openings.
§179.100-18
Tests of tanks.
§179.100-19
Tests of safety relief valves.
§179.100-20
Stamping.
§179.101
Individual specification requirements applicable to pressure tank car tanks.
§179.101-1
Individual specification requirements.
§179.102
Special commodity requirements for pressure tank car tanks.
§179.102-1
Carbon dioxide, refrigerated liquid.
§179.102-2
Chlorine.
§179.102-3
Materials poisonous by inhalation.
§179.102-4
Vinyl fluoride, stabilized.
§179.102-17
Hydrogen chloride, refrigerated liquid.
§179.103
Special requirements for class 114A *  *  * tank car tanks.
§179.103-1
Type.
§179.103-2
Manway cover.
§179.103-3
Venting, loading and unloading valves, measuring and sampling devices.
§179.103-4
Safety relief devices and pressure regulators.
§179.103-5
Bottom outlets.
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Subpart D—SPECIFICATIONS FOR NON-PRESSURE TANK CAR TANKS (CLASSES DOT-111AW AND 115AW)

§179.200
General specifications applicable to non-pressure tank car tanks (Class DOT-111).
§179.200-1
Tank built under these specifications must meet the requirements of §§179.200, and 179.201.
§179.200-3
Type.
§179.200-4
Insulation.
§179.200-6
Thickness of plates.
§179.200-7
Materials.
§179.200-8
Tank heads.
§179.200-9
Compartment tanks.
§179.200-10
Welding.
§179.200-11
Postweld heat treatment.
§179.200-13
Manway ring or flange, pressure relief device flange, bottom outlet nozzle flange, bottom washout nozzle flange and other attachments and openings.
§179.200-14
Expansion capacity.
§179.200-15
Closures for manways.
§179.200-16
Gauging devices, top loading and unloading devices, venting and air inlet devices.
§179.200-17
Bottom outlets.
§179.200-19
Reinforcements, when used, and appurtenances not otherwise specified.
§179.200-21
Closures for openings.
§179.200-22
Test of tanks.
§179.200-23
Tests of pressure relief valves.
§179.200-24
Stamping.
§179.201
Individual specification requirements applicable to non-pressure tank car tanks.
§179.201-1
Individual specification requirements.
§179.201-2
[Reserved]
§179.201-3
Lined tanks.
§179.201-4
Material.
§179.201-5
Postweld heat treatment and corrosion resistance.
§179.201-6
Manways and manway closures.
§179.201-8
Sampling device and thermometer well.
§179.201-9
Gauging device.
§179.201-10
Water capacity marking.
§179.201-11
Insulation.
§§179.202—179.202-22
[Reserved]
§179.220
General specifications applicable to nonpressure tank car tanks consisting of an inner container supported within an outer shell (class DOT-115).
§179.220-1
Tanks built under these specifications must meet the requirements of §§179.220 and 179.221.
§179.220-3
Type.
§179.220-4
Insulation.
§179.220-6
Thickness of plates.
§179.220-7
Materials.
§179.220-8
Tank heads.
§179.220-9
Compartment tanks.
§179.220-10
Welding.
§179.220-11
Postweld heat treatment.
§179.220-13
Inner container manway nozzle and cover.
§179.220-14
Openings in the tanks.
§179.220-15
Support system for inner container.
§179.220-16
Expansion capacity.
§179.220-17
Gauging devices, top loading and unloading devices, venting and air inlet devices.
§179.220-18
Bottom outlets.
§179.220-20
Reinforcements, when used, and appurtenances not otherwise specified.
§179.220-22
Closure for openings.
§179.220-23
Test of tanks.
§179.220-24
Tests of pressure relief valves.
§179.220-25
Stamping.
§179.220-26
Stenciling.
§179.221
Individual specification requirements applicable to tank car tanks consisting of an inner container supported within an outer shell.
§179.221-1
Individual specification requirements.
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Subpart E—SPECIFICATIONS FOR MULTI-UNIT TANK CAR TANKS (CLASSES DOT-106A AND 110AW)

§179.300
General specifications applicable to multi-unit tank car tanks designed to be removed from car structure for filling and emptying (Classes DOT-106A and 110AW).
§179.300-1
Tanks built under these specifications shall meet the requirements of §§179.300 and 179.301.
§179.300-3
Type and general requirements.
§179.300-4
Insulation.
§179.300-6
Thickness of plates.
§179.300-7
Materials.
§179.300-8
Tank heads.
§179.300-9
Welding.
§179.300-10
Postweld heat treatment.
§179.300-12
Protection of fittings.
§179.300-13
Venting, loading and unloading valves.
§179.300-14
Attachments not otherwise specified.
§179.300-15
Pressure relief devices.
§179.300-16
Tests of tanks.
§179.300-17
Tests of pressure relief devices.
§179.300-18
Stamping.
§179.300-19
Inspection.
§179.300-20
Reports.
§179.301
Individual specification requirements for multi-unit tank car tanks.
§179.302
[Reserved]
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Subpart F—SPECIFICATION FOR CRYOGENIC LIQUID TANK CAR TANKS AND SEAMLESS STEEL TANKS (CLASSES DOT-113 AND 107A)

§179.400
General specification applicable to cryogenic liquid tank car tanks.
§179.400-1
General.
§179.400-3
Type.
§179.400-4
Insulation system and performance standard.
§179.400-5
Materials.
§179.400-6
Bursting and buckling pressure.
§179.400-7
Tank heads.
§179.400-8
Thickness of plates.
§179.400-9
Stiffening rings.
§179.400-10
Sump or siphon bowl.
§179.400-11
Welding.
§179.400-12
Postweld heat treatment.
§179.400-13
Support system for inner tank.
§179.400-14
Cleaning of inner tank.
§179.400-15
Radioscopy.
§179.400-16
Access to inner tank.
§179.400-17
Inner tank piping.
§179.400-18
Test of inner tank.
§179.400-19
Valves and gages.
§179.400-20
Pressure relief devices.
§179.400-21
Test of pressure relief valves.
§179.400-22
Protective housings.
§179.400-23
Operating instructions.
§179.400-24
Stamping.
§179.400-25
Stenciling.
§179.401
Individual specification requirements applicable to inner tanks for cryogenic liquid tank car tanks.
§179.401-1
Individual specification requirements.
§179.500
Specification DOT-107A * * * * seamless steel tank car tanks.
§179.500-1
Tanks built under these specifications shall meet the requirements of §179.500.
§179.500-3
Type and general requirements.
§179.500-4
Thickness of wall.
§179.500-5
Material.
§179.500-6
Heat treatment.
§179.500-7
Physical tests.
§179.500-8
Openings in tanks.
§179.500-10
Protective housing.
§179.500-11
Loading and unloading valves.
§179.500-12
Pressure relief devices.
§179.500-13
Fixtures.
§179.500-14
Test of tanks.
§179.500-15
Handling of tanks failing in tests.
§179.500-16
Tests of pressure relief devices.
§179.500-17
Marking.
§179.500-18
Inspection and reports.
Appendix
Appendix A to Part 179—Procedures for Tank-Head Puncture-Resistance Test
Appendix
Appendix B to Part 179—Procedures for Simulated Pool and Torch-Fire Testing


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