Pipeline and Haz. Matls. Safety Admin., DOT
equipped with a non-reclosing pressure relief device, the rupture disc must be perforated with a 3.2 mm (0.13 inch) diameter
hole. If a tank car tank is equipped with a
reclosing pressure relief valve, the tank
must also be equipped with a vacuum relief
valve.
B80 Each cargo tank must have a minimum
design pressure of 276 kPa (40 psig).
B81 Venting and pressure relief devices for
tank car tanks and cargo tanks must be
approved by the Associate Administrator.
B82 Cargo tanks and portable tanks are not
authorized.
B83 Bottom outlets are prohibited on tank
car tanks transporting sulfuric acid in concentrations over 65.25 percent.
B84 Packagings must be protected with
non-metallic linings impervious to the lading or have a suitable corrosion allowance
for sulfuric acid or spent sulfuric acid in
concentration up to 65.25 percent.
B85 Cargo tanks must be marked with the
name of the lading in accordance with the
requirements of Section 172.302(b).
B90 Steel tanks conforming or equivalent
to ASME specifications which contain
solid or semisolid residual motor fuel antiknock mixture (including rust, scale, or
other contaminants) may be shipped by
rail freight or highway. The tank must
have been designed and constructed to be
capable of withstanding full vacuum. All
openings must be closed with gasketed
blank flanges or vapor tight threaded closures.
B115 Rail cars, highway trailers, roll-on/
roll-off bins, or other non-specification
bulk packagings are authorized. Packagings must be sift-proof, prevent liquid
water from reaching the hazardous material, and be provided with sufficient venting to preclude dangerous accumulation of
flammable, corrosive, or toxic gaseous
emissions such as methane, hydrogen, and
ammonia. The material must be loaded
dry.
B116 The use of non specification, sift-proof
dump or hopper type vehicles, and siftproof roll-on/roll-off bulk bins, which must
be covered by a tarpaulin, metal cover, or
equivalent means is authorized for the
transportation of spent bleaching earth by
motor vehicle. The material is also be subject to operational controls which include
not exceeding a temperature of 55C (130F)
at the time it is offered or during transportation, not exceeding a transportation
time of 24 hours, and drivers transporting
spent bleaching earth must be trained in
the properties and hazards of the spent
bleaching earth. This training must be documented in training records required by
Section 172.704(d).
B120 The use of flexible bulk containers
conforming to the requirements in subpart

Section 172.102

R and subpart S of part 178 of this subchapter is permitted.
B130 When transported by motor vehicle,
used diatomaceous earth filter material is
not subject to any other requirements of
this subchapter except for the shipping
paper requirements of subpart C of part 172
of this subchapter; emergency response information as required by Section 172.602(a)(2)
through (a)(7) of this subchapter; and the
marking requirements of Section 172.302 of this
subchapter, if the following requirements
are met:
a. Packagings are non-DOT specification
sift-proof motor vehicles or sift-proof
roll-on/roll-off bulk bins, which are covered by a tarpaulin or other equivalent
means.
b. The temperature of the material at the
time it is offered for transport and during transportation may not exceed 55 SectionC
(130 SectionF).
c. The time between offering the material
for transportation at the point of origin,
and unloading the material at the destination does not exceed 48 hours.
d. In addition to the training requirements
prescribed in SectionSection 172.700 through 172.704,
each driver must be trained regarding
the properties and hazards of diatomaceous earth filter material, precautions
to ensure safe transport of the material,
and actions to be taken in the event of
an emergency during transportation, or a
substantial delay in transit.
B131 When transported by highway, rail, or
cargo vessel, waste Paint and Paint related
material (UN1263; PG II and PG III), when
in plastic or metal inner packagings of not
more than 26.5 L (7 gallons), are excepted
from
the
marking
requirements
in
Section 172.301(a) and (c) and the labeling requirements in Section 172.400(a), when further packed
in the following specification and nonspecification bulk outer packagings and
under the following conditions:
a. Primary receptacles must conform to
the general packaging requirements of
subpart B of part 173 of this subchapter
and may not leak. If they do leak, they
must be overpacked in packagings conforming to the specification requirements of part 178 of this subchapter or in
salvage packagings conforming to the requirements in Section 173.12 of this subchapter.
b. Primary receptacles must be further
packed in non-specification bulk outer
packagings such as cubic yard boxes,
plastic rigid-wall bulk containers, dump
trailers, and roll-off containers. Bulk
outer packagings must be liquid tight
through design or by the use of lining
materials.
c. Primary receptacles may also be further
packed in specification bulk outer packagings. Authorized specification bulk
outer packagings are UN11G fiberboard

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