Storage facility means the entire class of structures used to store explosive materials. A storage facility used to store blasting agents corresponds to a BATF Type 4 or 5 storage facility.
30 CFR § 56.2
The following definitions apply in this part. In addition definitions contained in any subpart of part 56 apply in that subpart. If inconsistent with the general definitions in this section, the definition in the subpart will apply in that subpart: