Part 179 — Specifications for Tank Cars
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.
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.
Subpart C — Specifications for Pressure Tank Car Tanks (Classes DOT-105, 109, 112, 114 and 120)
- § 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.
- § 179.101-1— 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.
Subpart D — Specifications for Non-Pressure Tank Car Tanks (Classes DOT-111AW, 115AW, and 117AW)
- § 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.
- § 179.201-1— Individual specification requirements.
- § 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.
- § 179.202-1— Applicability.
- § 179.202-3— Approval to operate at 286,000 gross rail load (GRL).
- § 179.202-4— Thickness of plates.
- § 179.202-5— Tank head puncture resistance system.
- § 179.202-6— Thermal protection system.
- § 179.202-7— Jackets.
- § 179.202-8— Bottom outlets.
- § 179.202-9— Top fittings protection.
- § 179.202-11— Individual specification requirements.
- § 179.202-12— Performance standard requirements (DOT-117P).
- § 179.202-13— Retrofit standard requirements (DOT-117R).
- § 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.
- § 179.221-1— Individual specification requirements.
Subpart E — Specifications for Multi-Unit Tank Car Tanks (Classes DOT-106A and 110AW)
- § 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.
Subpart F — Specification for Cryogenic Liquid Tank Car Tanks and Seamless Steel Tanks (Classes DOT-113 and 107A)
- § 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.
- § 179.401-1— Individual specification requirements.
- § 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.