Use tax: exemptions; purchase of certain aircraft and aviation equipment; exempt. Amends sec. 4k of 1937 PA 94 (MCL 205.94k). TIE BAR WITH: HR 0002'25

HB 4120 exempts certain aircraft purchases and maintenance from Michigan's use tax. It applies to domestic air carriers using aircraft over 6,000 pounds for cargo, passenger, or combined transport, and to parts/materials affixed to such aircraft under specific conditions (e.g., aircraft not based in Michigan). The bill also exempts temporary aircraft in Michigan for maintenance or sales if they leave within 15 days, and extends tax exemptions to interstate trucking equipment used across state lines. These changes reduce tax burdens for airlines, aircraft maintenance providers, and interstate trucking companies operating in Michigan.