(a)
A traffic violator school shall issue a receipt for a fee collected by the traffic violator school from a person who registers for, attends, or completes a program of instruction in traffic safety at the licensed traffic violator school.(b)
In the event of a cancellation of a scheduled class, a licensee under this chapter shall not be required by the department to provide a program of instruction in traffic safety to a person for a fee that is less than the standard fee normally charged by the licensee for its program, if a notice of cancellation of a class is given to a student at least 72 hours prior to the start of the class, or if the class was canceled based upon exigent circumstances beyond the control of the licensee.
Source:
Section 11219.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=VEH§ionNum=11219.5..