Mississippi HVAC Regulatory Oversight for 2026: Complete Guide

Understanding Mississippi HVAC regulatory oversight is essential for contractors, businesses, and homeowners navigating the state's energy landscape. Mississippi's regulatory environment involves multiple agencies overseeing utility rates, contractor licensing, and energy policy. This comprehensive guide covers everything you need to know about Mississippi HVAC regulations heading into 2026.

The regulatory oversight framework in Mississippi affects how HVAC contractors operate, what utility rates consumers pay, and how energy infrastructure develops across the state. Whether you're an HVAC contractor seeking licensure or a business evaluating Mississippi's energy market, understanding these regulatory structures is critical for success.

Mississippi Public Service Commission: Primary Regulatory Oversight

The Mississippi Public Service Commission (PSC) serves as the primary regulatory body for Mississippi's utilities. The PSC regulates telecommunications, electric, gas, water, and sewer utilities in the state. The commission was established in 1884 as the Mississippi Railroad Commission, with its name changed to Public Service Commission in 1938.

The Mississippi PSC is composed of three commissioners, one elected from each of the state's three Supreme Court districts. Commissioners are elected to four-year terms with no term limits. Mississippi holds off-year elections (2023, 2027), and candidates must have resided in Mississippi for at least five years before the election. Commissioner salaries increased to $95,000 annually in 2024.

In January 2024, all three districts swore in new first-term commissioners for the first time since 1956. The current commissioners include: Commissioner Chris Brown (Northern District, Republican, elected 2023), Commissioner De'Keither Stamps (Central District, Democrat, elected 2023), and Commissioner Wayne Carr (Southern District, Republican, elected 2023).

Commissioner Brown is a former Republican member of the Mississippi House of Representatives. Commissioner Stamps previously ran in 2019 and succeeded in his 2023 rematch against incumbent Brent Bailey. Commissioner Carr comes from a contractor background and is new to politics.

Mississippi is one of only 10 states that elects its public service commissioners. In 2024-2025, there has been debate about whether to switch to an appointed commission, with all three commissioners publicly opposing such a change, arguing that elected officials are directly accountable to the public.

The PSC's regulatory authority in Mississippi includes:

Investor-owned electric utilities (Entergy Mississippi, Mississippi Power), natural gas utilities, telecommunications, water and sewer utilities. The PSC monitors and approves rates, monitors service delivery, and determines whether construction of utility facilities benefits the public.

The PSC does not regulate electric cooperatives (which serve approximately 58.5% of residential customers) or municipal utilities. The separate Mississippi Public Utilities Staff provides technical advice to the commission and operates under an executive director appointed by the Governor.

Agency: Mississippi Public Service Commission (PSC)
Address: 501 North West Street, Woolfolk State Office Building, Jackson, MS 39201
Phone: (601) 961-5400
Northern District: (800) 356-6428 | Central District: (800) 356-6430 | Southern District: (800) 356-6429
Website: www.psc.ms.gov

Understanding Mississippi's Regulatory Environment for 2026

The regulatory environment in Mississippi is characterized by relatively low electricity rates compared to national averages. According to Energy Information Administration data, Mississippi's average residential rate is approximately 11.62 cents per kWh, below the national average of about 13 cents.

Mississippi's electric market is divided among investor-owned utilities, cooperatives, and TVA-served areas. Entergy Mississippi serves approximately 29.4% of residential customers, Mississippi Power serves 12.1%, and cooperatives/municipalities serve the remaining 58.5%. The Tennessee Valley Authority provides power to portions of northern Mississippi through local power companies.

The state has seen significant economic development tied to utility infrastructure, including data centers and manufacturing facilities. Cooperative Energy, the only not-for-profit wholesale electric power provider headquartered in Mississippi, generates and transmits electricity for 11 member distribution systems across 55 counties, reaching over 445,000 homes and businesses.

Mississippi HVAC Licensing Requirements for 2026

The Mississippi State Board of Contractors (MSBOC) governs contractor licensing in the state. Mississippi has tiered licensing requirements based on project value, with no state license required for smaller residential HVAC projects under $10,000.

License Types and Thresholds

No State License Required: Residential electrical, plumbing, or HVAC work valued under $10,000. However, contractors must check local requirements as cities and counties may require local licenses.

Commercial License Required: For commercial work over $50,000, or for HVAC, electrical, or plumbing work over $10,000. Fire sprinkler work over $5,000 ($10,000 residential) also requires a commercial license.

Residential Builder License: Required for residential building over $50,000.

Residential Remodeling/Roofing License: Required for residential remodeling or roofing over $10,000.

Commercial License Classifications

For HVAC work, contractors can apply for:

Mechanical Contractor (Major Classification): Allows all aspects of heating, cooling, refrigeration, associated equipment, piping, ductwork, and plumbing work.

HVAC (Specialty Classification): Specific to heating, ventilation, and air conditioning work.

Pathways to Mississippi HVAC Licensure

To qualify for a Mississippi commercial contractor license, applicants must meet these requirements:

Age: At least 18 years old.

Experience: At least two years of experience working in HVAC (some sources indicate experience verified through three past projects reviewed by the licensing board).

Education: High school diploma or GED (no specific HVAC education requirements beyond this).

Insurance: Liability insurance with minimum coverage of $300,000 per occurrence and $600,000 aggregate. Workers' compensation insurance if employing five or more people.

Business Registration: Corporation or LLC registration with Mississippi Secretary of State. Mississippi Sales Tax number or Use Tax number required.

References: Three reference letters: one from a bank/financial institution, two from individuals or entities applicant has worked with on construction projects.

Three Project References: Documentation of three projects worked on related to the license classification sought.

Qualifying Party: Establish a qualifying party (any officer or managing employee) and provide proof of employment. A qualifying party may serve no more than three separate entities without special board permission.

Application Fee: $50 for initial application (covers one classification). Additional classifications require separate fees.

Examinations: Two exams required: Trade exam (80 questions, 4 hours, 70% passing) and Business & Law exam (50 questions, 2 hours, 70% passing). Exams are open book, administered by PSI.

Note: Starting August 7, 2025, Mississippi will use the 2021 code for exams. Both 2018 and 2021 editions will be accepted through October 31, 2025. Starting November 1, 2025, only the 2021 code is permitted.

License Renewal and Continuing Education

Mississippi contractor licenses must be renewed annually. No continuing education is currently required for renewal.

Reciprocity Agreements

Mississippi has reciprocity agreements with multiple states that waive the trade exam only (not other requirements or the Business & Law exam). Applicants must have held a license for 3 consecutive years in a reciprocating state:

Alabama Board of Heating and Air Conditioning Contractors: Can waive HVAC exam.

Arkansas Contractors Licensing Board: Waives all except Mechanical (including Plumbing, Boilers, HVAC) and Electrical.

Georgia Board of Residential and General Contractors: Must have taken Georgia exam.

Louisiana Licensing Board for Contractors: Waives all but Mechanical or Electrical; can waive HVAC but not Mechanical or Plumbing.

North Carolina, South Carolina, Tennessee: Various classifications with restrictions.

Additional Requirements

EPA Section 608 Certification: Required for all technicians handling refrigerants, regardless of project value.

Local Licensing: Many cities and counties require local licenses even for work under state thresholds. Always check local building official requirements.

Mississippi Utility Directory for HVAC Contractors

HVAC contractors in Mississippi work closely with utilities for rebate programs, energy efficiency initiatives, and service connections. Mississippi has a diverse utility landscape including investor-owned utilities, cooperatives, and TVA-served areas.

Investor-Owned Electric Utilities

Utility	Service Territory	Customers	Contact
Entergy Mississippi	Western Mississippi, Jackson metro, northwest MS	~460,000	entergy-mississippi.com | 800-368-3749
Mississippi Power (Southern Company)	Southeast Mississippi, Gulf Coast	~190,000	mississippipower.com | 800-532-1502

Wholesale Power Providers

Provider	Service Area	Members Served	Contact
Cooperative Energy	Southern and western Mississippi	11 member systems, 445,000+ homes/businesses	cooperativeenergy.com
Tennessee Valley Authority (TVA)	Northern Mississippi	Via local power companies	tva.com

Electric Cooperatives

Mississippi's electric cooperatives serve approximately 58.5% of residential customers across rural areas. Major cooperatives include:

Cooperative	Service Area	Contact
4-County Electric Power Association	Golden Triangle/Columbus area	4county.org
Coast Electric Power Association	Gulf Coast	coastepa.com
Delta Electric Power Association	Delta region	deltaelectric.com
Dixie Electric Power Association	Central Mississippi	dixieepa.com
Magnolia Electric Power	Southwest Mississippi	magnoliaelectric.com
Singing River Electric	Southeast Mississippi	singingriver.com
Southern Pine Electric	South Mississippi	southernpine.coop
Southwest Electric	Southwest Mississippi	southwestms.com
Tombigbee Electric Power Association	Northeast Mississippi	tombigbee.com
Twin County Electric Power Association	Northeast Mississippi	twincountyelectric.com

Natural Gas Utilities

Natural gas service in Mississippi is provided by various utilities including Atmos Energy, CenterPoint Energy, and local municipal gas systems.

• Do I need a state license for HVAC work in Mississippi?
  It depends on project value. No state license is required for residential HVAC work under $10,000. Commercial work over $50,000 or HVAC/plumbing/electrical work over $10,000 requires a commercial license from MSBOC. Always check local requirements.
• What exams are required for a Mississippi HVAC license?
  Two exams are required: a Trade exam (80 questions, 4 hours) covering HVAC systems, safety, and practices, and a Business & Law exam (50 questions, 2 hours). Both require 70% to pass and are open book.
• What insurance is required?
  Liability insurance with minimum $300,000 per occurrence and $600,000 aggregate. Workers' compensation insurance is required if employing five or more people.
• Does Mississippi have reciprocity with other states?
  Yes, Mississippi has reciprocity agreements with Alabama, Arkansas, Georgia, Louisiana, North Carolina, South Carolina, and Tennessee. Reciprocity waives only the trade exam; applicants must still meet other requirements and pass the Business & Law exam.
• Is continuing education required for renewal?
  No. Mississippi does not currently require continuing education for contractor license renewal. Licenses must be renewed annually.
• Who regulates electric utilities in Mississippi?
  The Mississippi Public Service Commission regulates investor-owned utilities (Entergy Mississippi, Mississippi Power). Electric cooperatives are member-regulated, and municipal utilities are governed by local authorities.
• What percentage of Mississippians are served by cooperatives?
  Approximately 58.5% of Mississippi's residential electric customers are served by cooperatives and municipalities, with Entergy Mississippi serving 29.4% and Mississippi Power serving 12.1%.
• When does the 2021 code take effect for exams?
  Starting August 7, 2025, both 2018 and 2021 editions are accepted. Starting November 1, 2025, only the 2021 code is permitted for exams.
• Do I need EPA certification in Mississippi?
  Yes. EPA Section 608 certification is federally required for anyone working with refrigerants, regardless of the monetary value of the project.
• How do I verify a contractor's license in Mississippi?
  Use MSBOC's online license search at msboc.us or contact the board at (601) 354-6161.

Resources for Mississippi HVAC Contractors

Mississippi State Board of Contractors: www.msboc.us | (601) 354-6161

MSBOC Application Forms: msboc.us/contractors/licenses

PSI Exam Scheduling: www.psiexams.com | 855-557-0619

Mississippi Public Service Commission: www.psc.ms.gov

Mississippi Construction Education Foundation: www.mcef.net