The State Fire Marshal may adopt regulations specifying the access to roof areas of commercial establishments which firefighters shall have and may limit or restrict the use of razor wire fences, chain link fences, or any other fences which would obstruct that access.
For purposes of this section, “commercial establishment” shall not include any facility of a public utility.
Source:
Section 13108.6, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=13108.6..