Title 20, Chapter 2, Section 1090
The various school boards of the counties, cities, and independent
school systems employing school buses are authorized and required to
cause policies of insurance to be issued insuring the school
children riding therein to and from school against bodily injury or
death at any time resulting from an accident or collision in which
such buses are involved. The amount of such insurance shall be
within the discretion of the respective boards.