Scuba Cylinders and Title 49 of the Code of Federal Regulations
Part 171 - General Information, Regulations and definitions
171.1 Purpose and Scope
171.1(a) This subchapter prescribes requirements of the Department
of Transportation (DOT) governing-
171.1(a)(1) The offering of hazardous materials for transportation
and transportation of hazardous materials in interstate, intrastate, and
foreign commerce by rail car, aircraft, motor vehicle and vessel
171.1(a)(2) The representation that a hazardous material is present
in a package, container, rail car, aircraft, motor vehicle or vessel.
171.1(a)(3) The manufacturer, fabrication, marking, maintenance,
reconditioning, repairing, or testing or a packaging or
container which is
represented, marked, certified or sold for use in transportation of
171.1(a)(4) The use of terms and symbols prescribed in this
subchapter foe the making, labeling, placarding and description of
hazardous material and packaging used in their transport.
171.1(b)(c) Any person, under contract with the Federal Government,
who causes a hazardous material to be transported, or who manufactures,
fabricates, marks, maintains, reconditions, repairs or tests a package or
container which is represented, marked, certified or sold by such person
as qualified for use in the transportation of a hazardous material, shall
comply with all provisions of the Federal hazardous materials
transportation law and all requirements of Federal, State, and local
governments and Indian Tribes. The fine for breaking the law is $27,500.00
(max), $250.00 (min) Each day may represent a separate charge.
171.2 General Requirements
171.2(c) No person may represent, mark, certify, sell or offer a
packaging or container as meeting the requirements of this subchapter
unless the packaging or container is manufactured, fabricated, marked,
maintained, reconditioned, repaired and retested (as appropriate) in
accordance with the applicable requirements of this subchapter.
171.2(d)(1)(2)(3) The representations, markings, and certifications
subject to paragraph (c) above include: "ICC", "DOT",
certain "EX" exemptions and test dates.
171.2(e) When a person performs a function covered by a
specification prescribed in part 178, that function must be performed in
accordance with the specification.
171.2(f)(1)(2) No person shall mark or otherwise represent that a
container intended for transportation of hazardous materials is safe,
certified, or in compliance with the requirements of this title unless it
meets the requirements of all applicable regulations issued under the
Federal hazardous material transportation law. No person shall mark or
otherwise represent that a hazardous material is present in a package,
container , motor vehicle, rail car, aircraft, or vessel, if the
hazardous material is not present.
171.2(g)(1)(2) No person shall unlawfully alter, remove, deface,
destroy or otherwise tamper with: any marking or label, placard, or
description in a document required by the Federal hazardous material
transportation law; nor any package,
container , motor vehicle, rail car,
aircraft or vessel used for the transportation of hazardous materials.
171.2(h)(1)(2) No person shall falsify or alter an exemption,
approval, registration, or other grant of authority issued under this
subchapter. No person shall offer a hazardous material for transport or
transport a hazardous material in commerce, or represent, mark, certify or
sell a package or a
container , under false or altered exemption, approval,
registration or other grant of authority issued under this subchapter.
171.6 Control numbers under the Paperwork Reduction Act
Current OMB control no. = 2137-0022; Title = Record keeping and
Information Collection for Cylinders; Title 49 CFR Part or section where
identified and described =173.34
171.7 Matter incorporated by reference
Pertinent information in the published documents of CGA, ASME, ANSI,
CGA Pamphlet C-5 "Cylinder Service Life - Seamless Steel High
CGA Pamphlet C-6 "Standards for visual inspection of steel compressed
CGA Pamphlet C-6.1 "Standards for visual inspection of aluminum
compressed gas cylinders"
CGA Pamphlet C-7 "A guide for preparation of precautionary markings
for compressed gas containers, appendix A"
CGA Pamphlet S-1.1 "Pressure relief device standards Part 1-Cylinders
for compressed gases"
CGA Pamphlet G-4.1 "Cleaning equipment for oxygen service"
171.8 Definitions and Abbreviations
"Carrier" means a person engaged in the transportation of
passengers or property: by land, water, as a common, contract, or private
carrier, or by civil aircraft.
"Class" means hazard class.
"Compressed Gas" A compressed gas is defined as one at a
pressure of 40.6psia or greater at a temperature of 20°C (68°F)
Cylinder" A pressure vessel designed for pressures higher than
40psia having a circular cross section
"Gross Weight (gross mass)" Means the weight of a packaging plus
the weight of its contents.
"Hazardous Material" means a substance capable of posing an
unreasonable risk to health, safety and property when transported in
commerce (per Secretary of Transportation)
"Hazardous substance" Compressed air, compressed argon,
compressed helium, compressed nitrogen, and compressed oxygen are not
considered hazardous substances.
"Hazmat Employee" means a person (including a self-employed
individual) who in the course of employment loads, unloads or handles
"Marking" means a descriptive name, identification number,
instructions, cautions, weight, specification, or UN marks or combinations
thereof, required by this subchapter on outer packaging of hazardous
"Materials of trade" means hazardous materials, other than
hazardous wastes that are carried on a motor vehicle, by a private motor
carrier in direct suppor of a principal business that is other than
transportation by motor vehicle.
Non Bulk Packaging" means a packaging which has: (3) a water
capacity of 1000 pounds or less as a receptacle for a gas.
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