27 CFR § 447.32 - Application for registration and refund of fee.
(a) Application for registration must be filed on ATF Form 4587 and must be accompanied by the registration fee at the rate prescribed in this section. The appropriate ATF officer will approve the application and return the original to the applicant.
(b) Registration may be effected for periods of from 1 to 5 years at the option of the registrant by identifying on Form 4587 the period of registration desired. The registration fees are as follows:
(c) Fees paid in advance for whole future years of a multiple year registration will be refunded upon request if the registrant ceases to engage in importing articles on the U.S. Munitions Import List. A request for a refund must be submitted to the appropriate ATF officer at the Bureau of Alcohol, Tobacco, Firearms, and Explosives, Martinsburg, WV 25405, prior to the beginning of any year for which a refund is claimed.