The chassis engine shall have plugged openings for the purpose of supplying hot water for the school bus heating system. The openings shall be suitable for attaching 3/4 -inch pipe thread/hose connectors. The engine shall be capable of supplying water at a temperature in accordance with the engine manufacturer's specifications. The heating system on Type A school buses and Type B school buses constructed on a cutaway chassis may be in accordance with the chassis manufacturer's specifications.
N.J. Admin. Code § 13:20-50A.14