49 CFR 173.188 - White or yellow phosphorus.
Phosphorus, white or yellow, when offered for transportation or transported by rail, highway, or water, must be packaged in water or dry in packagings conforming to the requirements of part 178 of this subchapter at the Packing Group I performance level, as follows:
(ii) Inner water-tight metal cans containing not over 0.5 kg (1 pound) of phosphorus with screw-top closures; or
(2) Steel, aluminum or other metal drums (1A1, 1B1 or 1N1) not over 250 L (66 gallons) capacity each or steel, aluminum or other metal drums (1A2, 1B2, or 1N2) not over 115 L (30 gallons) capacity each.
(i) A 115 L (30 gallon) UN1A2 steel drum certified to the PG I performance level for solids and the PG I or PG II performance level for liquids and dual marked, at a minimum, as a UN1A2/X400/S (for solid) and UN1A2 X(or Y)/1.4/150 (for liquids) subject to the following conditions:
(iv) Packages must be destroyed and may not be reused;
(v) The net mass of the material and water, in kilograms, must not exceed the mass that would be permitted by calculating the volume of the packaging in liters multiplied by the specific gravity indicated on the package certification;
(vi) Transportation is by private or contract motor carrier only; and
(vii) Transportation is authorized from the offeror's location to a facility where it must be unloaded by the consignee.
(1) Steel, aluminum or other metal drums (1A2, 1B2 or 1N2) not over 115 L (30 gallons) capacity each, or