HVAC Permits in Mississippi
Complete guide to HVAC permit requirements, energy code compliance, and building department information for contractors working in Mississippi.
Mississippi Energy Code Requirements
Understanding the energy efficiency standards that govern HVAC installations in Mississippi
Current Energy Code
2021 IECC
Current Standard
Statewide energy efficiency requirements for HVAC systems, equipment, and building envelope performance.
Common Requirements
Important Note
Local jurisdictions may have additional requirements beyond the state energy code. Always verify specific compliance needs with your local building department.
HVAC Permits by City in Mississippi
Jackson
Zone 3AHinds County • 35 ZIP codes
Biloxi
Zone 2AHarrison County • 13 ZIP codes
Bolivar
Zone 3ABolivar County • 13 ZIP codes
Coahoma
Zone 3ACoahoma County • 11 ZIP codes
Tallahatchie
Zone 3ATallahatchie County • 10 ZIP codes
Sunflower
Zone 3ASunflower County • 9 ZIP codes
Lee
Zone 3ALee County • 9 ZIP codes
DeSoto
Zone 3ADeSoto County • 8 ZIP codes
Washington
Zone 3AWashington County • 8 ZIP codes
Lauderdale
Zone 3ALauderdale County • 8 ZIP codes
Jasper
Zone 3AJasper County • 8 ZIP codes
Jones
Zone 3AJones County • 8 ZIP codes
Lowndes
Zone 3ALowndes County • 8 ZIP codes
Quitman
Zone 3AQuitman County • 7 ZIP codes
Monroe
Zone 3AMonroe County • 7 ZIP codes
Leflore
Zone 3ALeflore County • 7 ZIP codes
Hinds
Zone 3AHinds County • 7 ZIP codes
Rankin
Zone 3ARankin County • 7 ZIP codes
Newton
Zone 3ANewton County • 7 ZIP codes
Panola
Zone 3APanola County • 6 ZIP codes
Tippah
Zone 3ATippah County • 6 ZIP codes
Marshall
Zone 3AMarshall County • 6 ZIP codes
Pontotoc
Zone 3APontotoc County • 6 ZIP codes
Calhoun
Zone 3ACalhoun County • 6 ZIP codes
Holmes
Zone 3AHolmes County • 6 ZIP codes
Yazoo
Zone 3AYazoo County • 6 ZIP codes
Simpson
Zone 3ASimpson County • 6 ZIP codes
Madison
Zone 3AMadison County • 6 ZIP codes
Attala
Zone 3AAttala County • 6 ZIP codes
Pike
Zone 3APike County • 6 ZIP codes
Webster
Zone 3AWebster County • 6 ZIP codes
Gulfport
Zone 2AHarrison County • 5 ZIP codes
Lafayette
Zone 3ALafayette County • 5 ZIP codes
Sharkey
Zone 3ASharkey County • 5 ZIP codes
Humphreys
Zone 3AHumphreys County • 5 ZIP codes
Tishomingo
Zone 3ATishomingo County • 5 ZIP codes
Itawamba
Zone 3AItawamba County • 5 ZIP codes
Carroll
Zone 3ACarroll County • 5 ZIP codes
Scott
Zone 3AScott County • 5 ZIP codes
Benton
Zone 3ABenton County • 4 ZIP codes
Union
Zone 3AUnion County • 4 ZIP codes
Prentiss
Zone 3APrentiss County • 4 ZIP codes
Chickasaw
Zone 3AChickasaw County • 4 ZIP codes
Yalobusha
Zone 3AYalobusha County • 4 ZIP codes
Leake
Zone 3ALeake County • 4 ZIP codes
Copiah
Zone 3ACopiah County • 4 ZIP codes
Claiborne
Zone 3AClaiborne County • 4 ZIP codes
Smith
Zone 3ASmith County • 4 ZIP codes
Lawrence
Zone 3ALawrence County • 4 ZIP codes
Kemper
Zone 3AKemper County • 4 ZIP codes
Clarke
Zone 3AClarke County • 4 ZIP codes
Lamar
Zone 3ALamar County • 4 ZIP codes
Marion
Zone 3AMarion County • 4 ZIP codes
Franklin
Zone 3AFranklin County • 4 ZIP codes
Clay
Zone 3AClay County • 4 ZIP codes
Tate
Zone 3ATate County • 3 ZIP codes
Tunica
Zone 3ATunica County • 3 ZIP codes
Issaquena
Zone 3AIssaquena County • 3 ZIP codes
Alcorn
Zone 3AAlcorn County • 3 ZIP codes
Grenada
Zone 3AGrenada County • 3 ZIP codes
Montgomery
Zone 3AMontgomery County • 3 ZIP codes
Covington
Zone 3ACovington County • 3 ZIP codes
Warren
Zone 3AWarren County • 3 ZIP codes
Wayne
Zone 3AWayne County • 3 ZIP codes
Noxubee
Zone 3ANoxubee County • 3 ZIP codes
Forrest
Zone 3AForrest County • 3 ZIP codes
Perry
Zone 3APerry County • 3 ZIP codes
Pearl River
Zone 2APearl River County • 3 ZIP codes
Greene
Zone 3AGreene County • 3 ZIP codes
Hancock
Zone 2AHancock County • 3 ZIP codes
Stone
Zone 2AStone County • 3 ZIP codes
Lincoln
Zone 3ALincoln County • 3 ZIP codes
Wilkinson
Zone 3AWilkinson County • 3 ZIP codes
Amite
Zone 3AAmite County • 3 ZIP codes
Choctaw
Zone 3AChoctaw County • 3 ZIP codes
Oktibbeha
Zone 3AOktibbeha County • 3 ZIP codes
Jefferson Davis
Zone 3AJefferson Davis County • 2 ZIP codes
Winston
Zone 3AWinston County • 2 ZIP codes
Neshoba
Zone 3ANeshoba County • 2 ZIP codes
Walthall
Zone 3AWalthall County • 2 ZIP codes
Adams
Zone 3AAdams County • 1 ZIP codes
George
Zone 3AGeorge County • 1 ZIP codes
Harrison
Zone 2AHarrison County • 1 ZIP codes
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Frequently Asked Questions
Everything you need to know about HVAC permits and energy code compliance in Mississippi
1What energy code does Mississippi follow?
Mississippi follows the 2021 IECC for energy efficiency requirements. This includes specific standards for HVAC equipment efficiency, duct design, and building envelope performance.
2Are Manual J calculations required in Mississippi?
Most jurisdictions in Mississippi require Manual J load calculations for proper HVAC system sizing. Our free load calculation tool can generate the professional reports you need for permits.
3How long does it take to get HVAC permits in Mississippi?
Permit processing times vary by jurisdiction, typically ranging from 1-3 weeks. Having complete documentation including load calculations can speed up the process. Check with your local building department for specific timeframes.
4Do I need different permits for different types of HVAC work?
Yes, permit requirements vary based on the scope of work. New installations typically require mechanical permits, while simple repairs may not need permits. Replacements usually require permits if there are changes to the system capacity or ductwork.
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Get official IECC climate zone information, design temperatures, and R-value requirements for accurate Manual J calculations in Mississippi.
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