Current through Reg. 49, No. 12; March 22, 2024
(a) This subchapter
applies to transport containers and moveable fuel storage tenders such as farm
carts constructed to MC-330 or MC-331 Department of Transportation (DOT)
specifications, nonspecification units, container delivery units, school buses,
mass transit vehicles, special transit vehicles, and public transportation
vehicles.
(1) Transfer of LP-gas from one
transport to another shall be permitted only through a hose with a nominal
inside diameter of 1 1/4 inch or less and protected by an off-truck remote
control shutdown as required in Title 49 Code of Federal Regulations (CFR)
§173.315(n)(3).
(2) An LP-gas
transport shall not be joined to manifold piping or to a stationary container
for use as an auxiliary storage container at any stationary installation except
with prior approval from AFS.
(b) All transports and moveable fuel storage
tenders shall comply with MC-330 or MC-331, or the exemption in
49 CFR §
173.315<subdiv>(k)</subdiv>.
(c) Licensees and ultimate consumers shall
comply with other DOT or motor vehicle requirements, if applicable. In
addition, transports and container delivery units shall also comply with the
applicable sections of 49 CFR, the Federal Motor Vehicle Safety Standards, and
any other applicable regulations. Examples of such additional requirements are
as follows:
(1)
49 CFR §
177.834<subdiv>(j)</subdiv>
states: "Except for a cargo tank conforming to § 173.29(b)(2) of this
subchapter, a person may not drive a cargo tank motor vehicle containing a
hazardous material regardless of quantity unless:
(1) All manhole closures are closed and
secured; and
(2) All valves and
other closures in liquid discharge systems are closed and free of leaks, except
external emergency self-closing valves on MC 338 cargo tanks containing the
residue of cryogenic liquids may remain either open or closed during
transit."
(2)
49 CFR §
177.840<subdiv>(g)</subdiv>
states: "Each liquid discharge valve on a cargo tank motor vehicle, other than
an engine fuel line valve, must be closed during transportation except during
loading and unloading."
(3)
49 CFR
§180.405<subdiv>(n)</subdiv>
states: "Thermal activation. No later than the date of its first scheduled
leakage test after July 1, 1999, each specification MC 330 or MC 331 cargo tank
motor vehicle and each nonspecification cargo tank motor vehicle conforming to
§ 173.315(k) of this subchapter, marked and certified before July 1, 1999,
that is used to transport a liquefied compressed gas, other than carbon dioxide
and chlorine, that has a water capacity of 13,247.5 liters (3,500 gallons) or
less must be equipped with a means of thermal activation for the internal
self-closing stop valve as specified in §178.337-8(a)(4) of this
subchapter."