(A) (1) The Department may promulgate rules and regulations to more completely specify the equipment requirements of this subchapter and may establish by rule a pilot program to permit the testing of safety equipment not otherwise prohibited by state or federal law.
(2) All rules, regulations and standards promulgated from time to time by the State Board of Education and the Department for the safety and construction of school buses shall be applicable to every motor vehicle in this state defined as a school bus under § § 70.002.
(625 ILCS 5/12-812)
(B) (1) The Department shall adopt and promulgate rules and regulations governing the use of liquefied petroleum gases, compressed natural gases and liquefied natural gases as a propellant fuel in school buses. Such rules and regulations shall include the installation, maintenance and operation of such equipment installed on school buses and shall be based on the generally accepted standards of safety as recommended by the National Fire Protection Association.
(2) All school buses using liquefied petroleum gases, compressed natural gases or liquefied natural gases as a propellant fuel must conform to and obey any rule or regulation lawfully adopted by the Department.
(625 ILCS 5/12-812.1)