Sections 1761.2, 1761.4, and 1761.8 do not prohibit the use of alternate space utilization, new concepts of design, treatment techniques, equipment and alternate finish materials, or other flexibility, if written approval is granted by the local building authority.
Source:
Section 1761.85, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=1761.85..