Identifying/Marking Explosive Materials

To protect the public from misuse of explosives, implementing regulations at 27 CFR 555.109 require licensees/permittees to mark certain explosives they manufacture or import, as well as mark immediate containers and outside packaging. The markings must include certain information and be clear and permanent, though they can be done via sticky label, marker, etc. Some types of explosives are too small or too fluid, in a form that cannot be marked, and are excepted.