Life changes occur to everyone at one time or another.  This would include a move to a new home for a variety of reasons – employment, marriage, etc.  As such, an individual would normally notify the Post Office, friends, family, and other interested parties of the change of address.  Similarly, Federal firearms licensees (FFLs) should (and are required) to notify ATF whenever there is a change to either their business location or mailing address. Federal firearms regulations require that a licensee prepare and file ATF F 5300.38 -Application for an Amended Federal Firearms Licensee-not less than 30 days prior to establishing the business at the new business premise.  This application should also be accompanied with the original license. As such, business cannot be conducted at this new location before the amended license has been approved and received from ATF.  This is important because you do not want to have an Industry Operations Investigator (IOI) who is unable to locate your business premises since ATF was not properly notified about the change of location.  To further complicate matters, if an IOI does finally locate the new premises and an amended return was not filed, the licensee could be considered to be conducting business without a valid license. Along these same lines, licensee are reminded (and required) to notify ATF of a change in their mailing address using ATF F 5300.38.  It is important to have a correct mailing address on file with ATF in order to receive correspondence and notices (among other things) from the agency.  As with the change in business premises, the original license should accompany the amended application.   A couple of points of reference in regards to  a licensee’s mailing address: 1. The mailing address maybe a PO Box, but the business address may not. 2. The mailing address maybe different from the business address. Licensees should also remember to contact all the appropriate local and state agencies about any changes to either the business and/or mailing address.  As with the original application filed by the FFL, the amended application requires, among other things, that: 1.  The business to be conducted is not prohibited by State or local law where the premises are located. 2.  The business will comply with State and local requirements within 30 days of the license being approved. 3.  Business will not be conducted until State and local law requirements have been met.  Keeping ATF and other regulatory agencies “in the loop” goes a long way in maintaining a good working relationship.