§ 555.205 Movement of explosive materials.
All explosive materials must be kept in locked magazines meeting the standards in this subpart unless they are:
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a.(a) In the process of manufacture;
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b.(b) Being physically handled in the operating process of a licensee or user;
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c.(c) Being used; or
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d.(d) Being transported to a place of storage or use by a licensee or permittee or by a person who has lawfully acquired explosive materials under § 555.106.