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Hawthorne code library
The enacted text as published — organized by title, chapter, and section. Prefer a plain-English overview? See the Hawthorne regulations guide.
Documents
Also applies: California
Statewide law Hawthorne is written against. Browse all California law →
2022 edition
2022 PG&E Greenbook (Gas & Electric Service Requirements)
2025 edition
2025 California Administrative Code (Title 24, Part 1)
2025 edition
2025 California ADU Handbook (HCD)
2025 edition
2025 California Building Code (Title 24, Part 2)
2025 edition
2025 California Energy Code (Title 24, Part 6)
2025 edition
2025 California Existing Building Code (Title 24, Part 10)
2025 edition
2025 California Fire Code (Title 24, Part 9)
2025 edition
2025 California Green Building Standards Code (Title 24, Part 11)
2025 edition
2025 California Historical Building Code (Title 24, Part 8)
2025 edition
2025 California Mechanical Code (Title 24, Part 4)
2025 edition
2025 California Plumbing Code (Title 24, Part 5)
2025 edition
2025 California Referenced Standards Code (Title 24, Part 12)
2025 edition
2025 California Residential Code (Title 24, Part 2.5)
2025 edition
2025 California Wildland-Urban Interface Code (Title 24, Part 7.5)
Housing & land-use law (66 documents)
- AB 1482 — Tenant Protection Act of 2019
- California Civil Code § 1946.2 — Just-Cause Termination
- California Civil Code § 1947.12 — Rent Caps
- Costa-Hawkins Rental Housing Act
- Ellis Act (Gov. Code §§ 7060–7060.7)
- SB 567 — Homelessness Prevention Act (2023)
- Affordable Housing and High Road Jobs Act (AB 2011) — housing-law fact sheet
- California Constitution — Article XI (Local Government)
- California Federal Savings & Loan Ass'n v. City of Los Angeles
- California Redevelopment Ass'n v. Matosantos
- California Register of Historical Resources — listing regulations; State Historic Rehabilitation Tax Credit procedures
- CDLAC Regulations — Qualified Residential Rental Project Program (tax-exempt bond allocation)
- CEQA Statute and Guidelines (2025 consolidated text)
- CTCAC Regulations Implementing the Federal and State Low-Income Housing Tax Credit Programs
- Government Code §§ 53311–53368.3 — Mello-Roos Community Facilities Act of 1982
- Government Code §§ 53398.50–53398.88 — Enhanced Infrastructure Financing Districts
- Government Code §§ 65100–65763 — Local Planning, General Plans, Specific Plans, Community Plans (Planning and Zoning Law, Chapter 3, excluding Articles 10.6–10.7)
- Government Code §§ 65580–65590.1 — Housing Element Law, Housing Accountability Act (§ 65589.5), and Coastal-Zone Low/Mod Housing (Mello Act)
- Government Code §§ 65800–65912 — Zoning Regulations (Planning and Zoning Law, Chapter 4)
- Government Code §§ 65912.100–65912.162 — Affordable Housing and High Road Jobs Act (AB 2011) and Transit-Oriented Development (SB 79)
- Government Code §§ 65913–65914.900, 66200–66210 — Housing Development Approvals (incl. § 65913.4 SB 35/SB 423 streamlined ministerial approval) and Housing Sustainability Districts
- Government Code §§ 65915–65918 — State Density Bonus Law
- Government Code §§ 65920–65964.5 — Permit Streamlining Act
- Government Code §§ 65970–66025, 66030–66035 — School Facilities Fees and Mitigation Fee Act (Fees for Development Projects)
- Government Code §§ 66300–66300.6.5 — Housing Crisis Act of 2019 (SB 330) and Demolition of Housing Units
- Government Code §§ 66310–66342 — Accessory Dwelling Unit and Junior ADU Law
- Government Code §§ 66410–66499.58 — Subdivision Map Act
- Government Code, Title 7, Division 1 — General Provisions, State & Regional Planning, Public Hearings, and Miscellaneous Chapters (§§ 65000–65096, 65098, 65919–65993, 66100–66103, 66345)
- HCD enforcement — Beverly Hills — Notice of Violation: builder's-remedy applications
- HCD enforcement — Beverly Hills (8844 Burton Way) — Notice of Potential Violation: completeness/appeal denial
- HCD enforcement — Glendale — ADU follow-up Notice of Violation
- HCD enforcement — Huntington Beach — Notice of Potential Violation: SB 35 / housing element
- HCD enforcement — La Cañada Flintridge — Notice of Violation: HAA / builder's remedy
- HCD enforcement — Los Gatos (980 University Ave.) — Notice of Potential Violation: PSA & SDBL
- HCD enforcement — Placer County — Notice of Potential Violation + corrective action: HAA, SDBL, Housing Element Law
- HCD enforcement — San Bernardino — Notice of Violation: HAA
- HCD letter of technical assistance — Baldwin Park — AB 2011 technical assistance
- HCD letter of technical assistance — Berkeley (Berkeley USD site) — HAA technical assistance
- HCD letter of technical assistance — Carlsbad — SDBL implementation
- HCD letter of technical assistance — Carlsbad — SDBL replacement units
- HCD letter of technical assistance — Danville (101–119 Town & Country Dr.) — SDBL base density & concessions
- HCD letter of technical assistance — Los Gatos (North 40 Phase II) — SDBL phased-development concession
- HCD letter of technical assistance — Rancho Cucamonga — SB 330 preliminary-application vesting rights
- HCD letter of technical assistance — Santa Ana — AB 2011 technical assistance
- HCD letter of technical assistance — Santa Ana — HAA technical assistance
- HCD letter of technical assistance — Santa Cruz (Arthaus Ocean) — SDBL
- Health and Safety Code §§ 34161–34191.55 — Redevelopment Agency Dissolution and Successor Agencies (Division 24, Parts 1.8, 1.85, 1.87)
- Housing Accountability Act — HCD program advisory
- Housing Accountability Act Technical Assistance Advisory
- Housing Crisis Act — affected cities list
- Housing Crisis Act — affected counties list
- Housing Crisis Act (SB 330/SB 8) — HCD program advisory
- Housing Element Completeness Checklist
- Housing Element Sites Inventory Guidebook (AB 1397)
- Palmer/Sixth Street Properties, L.P. v. City of Los Angeles
- Public Resources Code §§ 21000–21189.91 — California Environmental Quality Act
- Public Resources Code §§ 30000–30900 — California Coastal Act of 1976
- Public Resources Code §§ 5020–5029.5 — Historical Resources (State Historical Resources Commission, California Register)
- SB 330 Preliminary Application Form (standardized)
- SB 423 Determination Methodology (SMAP)
- SMAP Determination Methodology (updated 2026-06-30)
- State Density Bonus Law — HCD program advisory
- State Density Bonus Law — sample ordinance template
- State Historic Rehabilitation Tax Credit procedures (14 CCR § 4859 series, rulemaking text)
- Streamlined Ministerial Approval Process (SB 35/SB 423) — HCD program advisory
- Streamlined Ministerial Approval Process Guidelines (final updated)
GoCodebook provides public access, search, citation, multilingual explanation, and practical interpretation of legally adopted building regulations. It is not a substitute for the official ICC or California code publications.