49 CFR 173.160 - Bombs, smoke, non-explosive (corrosive).
Bombs, smoke, non-explosive may be shipped provided they are without ignition elements, bursting charges, detonating fuses or other explosive components. They must be packaged in wooden (4C1, 4C2), plywood (4D) or reconstituted wood (4F) boxes, or plywood drums (1D), which meet Packing Group II requirements.
Title 49 published on 2014-10-01
no entries appear in the Federal Register after this date.