MI SB0906

Adds exemption from sales tax for school bus purchases or leases and related transportation services used under contracts with schools for transporting students to or from school or school-related events.

Exempts parts and adaptive equipment affixed to school buses used in repair, maintenance, accommodation, or modification of school buses from sales tax.

Limits exemption to school buses primarily used for transportation contracted by schools; excludes services provided to non-exempt entities unrelated to school transportation.

Defines "school" as public schools or public school academies under the revised school code and "school bus" per the pupil transportation act.

Makes the amendment retroactive to all open tax periods under section 27a of 1941 PA 122, except for refund claims filed before April 9, 2018.