Maine

Updated 5/11/2025

Overview

Maine enforces a statewide building code through the Maine Uniform Building and Energy
Code (MUBEC). This code applies to all municipalities, but enforcement is mandatory only
in municipalities with populations over 4,000. Municipalities with fewer than 4,000
residents may choose to adopt and enforce MUBEC at their discretion.

Maine recently adopted the 2021 International Residential Code (IRC) with amendments, which went into effect on April 7, 2025.

CodePro Uses the Following Codes for Answers:

Additional Resources:

For more information, click here for the state-specific website.

To access Maine’s amendment documents, visit MUBEC Rules & Amendments.

For details on the adoption of the 2023 NEC and its amendments, visit Maine Electricians Licensing and Regulations.

  • Adoption Category

Statewide

  • Amendments

State

Statewide Adoption

A statewide adoption means that building codes are enforced uniformly across the entire state. The state government adopts and mandates compliance with specific building, residential, plumbing, and electrical codes. Local jurisdictions must follow these codes without making significant amendments, ensuring consistency in construction regulations across the state.

🔎 How to Look Up & Verify Codes

Looking for a different state?

Select Another State