37 Tex. Admin. Code § 14.51
This rule applies to all school districts and county transportation systems that own, operate, rent, contract or lease school buses and those commercial transportation companies which contract with a public school or county transportation system to transport public school students in school buses. In this chapter the term "school district" also means an open enrollment charter school authorized by the Texas Education Code, Chapter 12, Subchapters D and E that is providing transportation according to Texas Education Code 34.003.
Source Note:The provisions of this §14.51 adopted to be effective July 7, 1999, 24 TexReg 5023; amended to be effective March 9, 2004, 29 TexReg 2378.