Notwithstanding Section 2884, the commission shall require that telephone subscriber access to information services providing messages which constitute harmful matter, as defined in Section 313 of the Penal Code, be furnished by an information provider or its agent on a subscription basis only.
Source:
Section 2884.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PUC§ionNum=2884.5..