New ATF Form 4473 Goes Into Effect Today Federal Firearms Licensees (FFL) must use the new ATF Form 4473 beginning today, as previous versions become obsolete on Oct. 17. Every FFL should be in receipt of the new forms (OMB No. 1140-0020). If any FFL is not in receipt of the new forms, he or she should contact their local ATF office. If those who have received the forms wish to place an additional order, they should contact the ATF Distribution Center at (703) 455-7801.