The provisions of this chapter added or amended by the act enacting this section shall not be applied retroactively. Equipment subject to this chapter shall be required to comply with the applicable standards in effect on the date of its installation or within the period determined by the board for compliance with ASME A17.3, whichever is more stringent.
Source:
Section 7324.2, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=LAB§ionNum=7324.2..