Welcome to ATF's eForms ATF's eForms allows individuals and members of the firearms industry to file certain forms electronically rather than via paper applications. 1 sept. 2023 ยท NFA Division: 14 days: 7 days: Form 3311.4: Application for Alternate Means of Identification of Firearm(s) (Marking Variance) FATD: 3 months-Form 5320.20: Application to Transport Interstate or to Temporarily Export Certain National Firearms Act (NFA) Firearms: NFA Division: 14 days-Form 5400.13/ 5400.16: Application for Explosives License or.