All approval applications can be submitted using the Online Application, by email to explo@dot.gov, or mailed to [our address].

The explosive approval request should contain the following:

• Request Letter as described in 49 CFR 107.705.
• Examination and class recommendation report from a DOT-Approved Explosive Test Lab or a recognized competent authority of a foreign government.
• A complete summary table for all the explosive compositions contained in the explosive substance or article, the percentages by weight shown and the composition of all mixtures specifically enumerated.
• Engineering drawings in 8.5 X 11 in. format of all the explosive articles with names, product number or drawing numbers that correspond to the class recommendation report.
• Designation of Agent (This applies to foreign manufacturers only).

Requests for confidential treatment must be marked in accordance with 49 CFR 105.30.