Benefits payable on account of an injury shall not be affected by a subsequent statutory change in amounts of indemnity payable under this division, and shall be continued as authorized, and in the amounts provided for, by the law in effect at the time the injury giving rise to the right to such benefits occurred.
Source:
Section 4453.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=LAB§ionNum=4453.5..