firearms; sales; regulation.

SB 1643 requires commercial firearm dealers in Arizona to obtain a state permit from the Department of Public Safety. Dealers must be at least 21 years old, hold a valid federal firearms license, pass background checks, and meet other eligibility criteria (like no recent firearm-related convictions). The law establishes a $250 permit fee and a dedicated fund to cover administrative costs for issuing permits and conducting inspections. It directly affects businesses selling firearms commercially (defined as selling five or more firearms within 12 months), requiring them to comply with these new licensing and safety standards.