National Association of State Directors of Pupil Transportation Services – Lap and Shoulder Belts in School Buses, May 2020: https://nasdpts.org/resources/Documents/NASDPTS%20Position%20Paper-Lap-Shoulder%20Belts%20in%20School%20Buses-May%202020.pdf

This paper states the position of NASDPTS regarding the equipping and use of passenger lap/shoulder belts in school buses.

National Association of State Directors of Pupil Transportation Services: Non-conforming Vans Used for School Transportation