Title 24 Guide

If Title 24 is new to you, start with these pages. They explain what the code is, who has to deal with it and which edition applies to a permit filed today, in plain language, with the technical terms underneath.

What Is Title 24?

The code, its parts and its history, and how it differs from Title 20, CALGreen, the IECC, LEED and ENERGY STAR.

• Title 24 vs the IECC: What Is the Difference?
• Title 24 vs LEED: How They Fit Together
• What Is Title 24?
• What Are the Parts of Title 24, and Which Is the Energy Code?
• Where to Find the Title 24 Code PDF
• Does an EV Charger Need Title 24?

View all What Is Title 24? answers (25) →

Who Needs Title 24?

Which projects trigger the Energy Code and what each role in a project (owner, designer, builder, installer) has to do.

• Title 24 Reports for Builders & Developers
• Title 24 for Designers and Drafters
• Title 24 for Engineers
• Title 24 Support for Architects
• Title 24 for Developers
• Title 24 Reports for Homeowners

View all Who Needs Title 24? answers (20) →

2025 Energy Code and 2026 Permits

What changed in the 2025 Energy Code, which edition your permit falls under and how the application date decides it.

• Title 24 Hotline: Who to Ask About an Energy Code Question
• Title 24 Requirements in California
• What Changed in the 2025 Energy Code?
• Does My Project Fall Under the 2022 or the 2025 Energy Code?
• How the 2025 Title 24 Calculation Differs From 2022: LSC, Heat Pump Baseline and Testing
• Will the Energy Code Change Again? The 2028 Title 24 Code and What It Means for a 2026 Permit

View all 2025 Energy Code and 2026 Permits answers (6) →

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