Wis. Admin. Code § Trans 330.07
(1) If a motor bus originally manufactured or otherwise equipped as a school bus is converted to use as a motor bus as provided in s. 347.44 (4), Stats., and s. Trans 300.19, it shall comply with the equipment standards of this chapter, and the following equipment standards for a school bus under s. Trans 300:
History: Cr. Register, May, 1991, No. 425, eff. 6-1-91; CR 19-004: renum. Trans 330.07 to (1) (intro.) and (2) and am., cr. (1) (a) to (g) Register November 2019 No. 767, eff. 12-1-19.