Current Commercial Code
passed 4/23/2013; effective 7/1/2013
This mandatory statewide code also applies to state-owned buildings.
Current Residential Code
No mandatory code. ASHRAE 90-1975 applies to residential buildings on a voluntary basis. Residential building energy codes are currently set by local jurisdictions.
Climate Zones: 2A, 3A
Code Adoption and Change Process
Code Change Process
The promulgation of a statewide mandatory energy code would have to proceed through the state legislature. Mississippi is a home rule state.
Code Change Cycle
The effective commercial code, ASHRAE 90.1-2010, was scheduled to be repealed on July 1, 2016. However, House Bill 906 extended the period during which ASHRAE 90.1-2010 applies to commercial new construction. Taking effect on July 1, 2016, it amended Section 57-39-21, moving the date of repeal back another three years to July 1, 2019. HB 906 was signed by the governor on April 7, 2016.
Next Code Update
|July 1, 2013||
Implementation and enforcement of the new code, ASHRAE 90.1-2010, becomes mandatory.
See this SEEA press release for more information on energy efficiency legislation in 2013.
|April 23, 2013||
House Bill 1266 is signed into law, setting the mandatory energy code standard for commercial and state-owned buildings as ASHRAE 90.1-2010. HB 1281 updates Mississippi’s statewide commercial building energy code to ASHRAE 90.1-2010.
|February 20, 2012||
Senate Bill 2887 is introduced in the Mississippi Legislature. This bill amends Mississippi Code 57-39-21 that would task the Mississippi Development Authority (MDA) to develop commercial energy standards based on ASHRAE 90.1-2007. In May 2012, this bill fails in conference committee.
|February 19, 2008||
Senate Bill 2555, which would have set certain rules and regulations regarding energy performance in state-funded buildings, dies in committee.
ASHRAE 90-1975 becomes effective for state owned buildings, public buildings, and high-rise buildings. This code also applies to residential buildings on a voluntary basis.
Technical Assistance Manager
Mississippi Development Authority
Energy Codes Manager
Southeast Energy Efficiency Alliance (SEEA)