Alabama Mechanical Code 2015

Adoption Info of Alabama Mechanical Code 2015

  • International Mechanical Code (IMC) 2015 with Alabama-specific amendments (applicable in jurisdictions that adopt it)

Effective Dates

  • January 1, 2015 – Present (varies by jurisdiction within Alabama)

Adopts with Amendments

  • International Mechanical Code (IMC) 2015

Scope

  • The Alabama Mechanical Code 2015 provides minimum standards for the design, installation, maintenance, and operation of mechanical systems in residential, commercial, and industrial buildings. This code covers HVAC systems, refrigeration, ventilation, and exhaust systems to ensure safety, indoor air quality, and energy efficiency.

Exception #1: Local jurisdictions in Alabama may adopt or amend provisions of the IMC, leading to variations in code application across the state.

Exception #2: Historic buildings may follow alternative compliance methods to preserve architectural integrity while meeting essential mechanical standards.

CODE REFERENCE GUIDE

Area Primary Supplement
HVAC System Design and Installation IMC 2015 NONE
Refrigeration Systems IMC 2015 NONE
Ventilation and Exhaust IMC 2015 NONE
Ductwork and Piping IMC 2015 NONE
Mechanical Equipment Efficiency IMC 2015 IECC
Combustion Air Requirements IMC 2015 NONE
Inspection and Testing IMC 2015 NONE
Fire and Smoke Control IMC 2015 NFPA 90A