[Note the difference between Federal Firearms License TYPE and Special (Occupational) Taxpayer CLASS.]
–
Key to Abbreviations
AOW – any other weapon
ATF – Bureau of Alcohol, Tobacco and Firearms
ATT – Alcohol and Tobacco Tax Division of the IRS, the pre-68 administrators of the NFA
C&R – curio and relic
CFR – Code of Federal Regulations
DD – destructive device
FET – federal excise tax
FFL – federal firearms license
GCA – Gun Control Act
NFA – National Firearms Act
SOT – special (occupational) taxpayer
USC – United States Code
DEWAT – De-activated war trophy