The following tutorial will show you around the part 771 landing page.
27 CFR Part 447
Importation of Arms, Ammunition and Implements of War
27 CFR Part 478
Commerce in Firearms and Ammunition
27 CFR Part 479
Machine Guns, Destructive Devices, and Certain Other Firearms
27 CFR Part 555
Commerce in Explosives
27 CFR Part 646
Contraband Cigarettes
27 CFR Part 771
Rules of Practice in Explosive License and Permit Proceedings
Effective date is the date this part was last amended
All motions that should be made prior to the hearing, such as a motion directed to the sufficiency of the pleadings or of preliminary orders, shall be filed in writing with the Director of Industry Operations or the administrative law judge if the matter has been referred to him, and shall briefly state the order or relief applied for and the grounds for such motion.