HCD proposes and adopts regulations for the programs under its enforcement or administrative authority in order to implement, interpret, or specify laws enacted by the Legislature.
The California Code of Regulations (CCR) is compiled into titles and organized into divisions containing the regulations of state agencies. HCD has statutory authority to develop regulations for two titles: Title 24, Building Standards Code and Title 25, Housing and Community Development. The information provided below is specific to Title 25 rulemakings. More information on title 24 rulemakings can be found on HCD’s Building Code Development & Adoption (Title 24) page.
Complete the Email Sign-Up form and select the notifications you wish to receive to stay up to date on HCD’s rulemaking activities.
Learn about the process, HCD’s authority, and how HCD and interested parties work together to develop regulations that impact the general welfare and well-being of the public.
View current Title 25 Rulemaking packages and public comment periods.
HCD’s Division of Codes and Standards is responsible for establishing, maintaining, updating, and enforcing regulations that affect the health and safety of housing and communities including mobilehomes and manufactured homes, floating homes, truck campers, mobilehome and special occupancy parks, factory-build housing, commercial and special purpose commercial modulars and hotels, motels, apartment houses, and dwellings or portions thereof and buildings and structures accessory thereto.
Existing laws and regulations for these programs can be found on individual program pages.
Submit a Public Comment
Public comment periods provide interested parties with a meaningful opportunity to participate in the adoption of regulations. Public comment periods are typically 15 – 45 days. The Notice of Proposed Action specific to each rulemaking package contains the information needed to submit public comments and the public comment timeframes.
Multiple ways to submit comments:
Electronically via the Public Comment Portal — Please note: The portal is available during public comment periods only. Please check Current Rulemaking Activities for proposed regulations open for public comment.
By mail:
California Department of Housing and Community Development
Division of Codes and Standards
P.O. Box 277820
Sacramento, CA 95827-7820
ATTN: PACKAGE NAME — Housing Regulations Team
By email:
Title25@hcd.ca.gov
Subject Line: PACKAGE NAME — Housing Regulations Team