Maryland HVAC Regulatory Oversight for 2026: Complete Guide

Understanding Maryland HVAC regulatory oversight is essential for contractors, businesses, and homeowners navigating the Old Line State's energy landscape. Maryland has comprehensive statewide licensing requirements for HVAC contractors administered by the Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors. This comprehensive guide covers everything you need to know about Maryland HVAC regulations heading into 2026.

The regulatory oversight framework in Maryland 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 Maryland's energy market, understanding these regulatory structures is critical for success.

Maryland Public Service Commission: Primary Regulatory Oversight

The Maryland Public Service Commission (PSC) is an independent administrative agency within the state government that regulates public utilities and certain taxi cab and other passenger services in Maryland. The PSC was established in 1910 by the Maryland General Assembly (Chapter 180 of the Acts of 1910).

The Maryland PSC is composed of five commissioners who serve staggered five-year terms. Commissioners are appointed by the Governor and confirmed by the Senate of the Maryland General Assembly. By statute, the commissioners must be representative of the state's regions and demographics and composed of individuals with diverse training and experience.

Current commissioners include: Chair Frederick H. Hoover (term expires June 30, 2028), Commissioner Kumar P. Barve (term expires June 30, 2029), Commissioner Bonnie A. Suchman (term expires June 30, 2027), Commissioner Odogwu Obi Linton (term expires June 30, 2026), and Commissioner Ryan C. 'Chuck' McLean (term expires June 30, 2030).

The PSC's regulatory authority in Maryland includes:

Electric and gas utilities and suppliers, telecommunications companies, water and sewage disposal companies, passenger motor vehicle carriers (sedans, limousines, charter buses), railroads, hazardous liquid pipelines, taxicabs in specified jurisdictions, Bay pilots and docking masters, and approval of electric generating plants and transmission lines over 69 kV.

Agency: Maryland Public Service Commission
Address: William Donald Schaefer Tower, 6 St. Paul Street, 16th Floor, Baltimore, MD 21202
Phone: (410) 767-8000 or 1-800-492-0474 (toll free)
Website: https://www.psc.state.md.us/

Understanding Maryland's Regulatory Environment for 2026

The regulatory environment in Maryland features a deregulated electricity market that began in 2000 with the Electric Customer Choice and Competition Act. Customers can choose their electricity supplier while the local utility handles delivery and infrastructure maintenance.

Maryland imports a significant portion of its electricity from neighboring states and participates in the PJM Interconnection regional grid. Recent capacity auction price increases have driven significant rate increases across utilities, prompting the PSC to take actions to mitigate customer impacts.

In 2025, the Maryland General Assembly passed SB1, which includes new consumer protections for retail electricity customers and has led to significant changes in the competitive supplier market. The legislation includes energy relief payments of $80 to Maryland households.

The PSC continues oversight of EmPOWER Maryland programs, multi-year rate plans for utilities, and the Strategic Infrastructure Development and Enhancement (STRIDE) program for natural gas infrastructure improvements.

Maryland HVAC Licensing Requirements for 2026

The Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration (HVACR) Contractors, part of the Department of Labor's Division of Occupational and Professional Licensing, licenses and regulates individuals who provide commercial and residential HVACR services. All individuals performing HVAC work in Maryland must be licensed. Performing HVAC work without proper licensure may result in criminal sentences including imprisonment or fines up to $5,000 per violation.

Maryland HVAC License Types

Apprentice License:
Requirements: No prerequisites; must be at least 18 years old
License Fee: $10
Scope: May only assist in providing HVACR services under direct supervision of a licensed Master, Master Restricted, or Limited contractor
Renewal: Every 2 years (October 1 in odd-numbered years), $20 renewal fee

Journeyman License:
Requirements: Licensed as apprentice for at least 4 years with 6,000 hours of training under licensed contractor; pass exam with 70% score
Exam Fee: $150 (administered by PSI)
License Fee: $20
Scope: Perform HVACR services under direction and control of a licensed contractor
Renewal: Every 2 years, $20 renewal fee

Journeyman Restricted License:
Requirements: Licensed as apprentice for at least 3 years with 1,875 hours of training; pass exam with 70% score
Exam Fee: $50 (administered by PSI)
License Fee: $20
Scope: One to four specialties: heating, forced air, hydronic, ventilation, air conditioning, or refrigeration
Note: Graduates of approved Maryland Apprenticeship and Training Council programs within 2 years may be exempt from exam

Limited Contractor License:
Requirements: Licensed as journeyman for at least 2 years with 1,000 hours in year prior to application; pass exam with 70% score; hold journeyman or higher license
Exam Fee: $150 (120 minutes)
License Fee: $75
Scope: Exclusively maintain and repair (not install) HVACR systems in specified categories
Insurance: $300,000 general liability and $100,000 property damage required

Master Restricted License:
Requirements: Licensed as journeyman for at least 3 years with 1,875 hours in year prior to application; pass exam with 70% score
Exam Fee: $150 (240 minutes)
License Fee: $75
Scope: Provide installation and maintenance in one or more areas: air conditioning, full heating, forced air, heating, hydronic heating, refrigeration, ventilation
Insurance: $300,000 general liability and $100,000 property damage required

Master License:
Requirements: Licensed as journeyman for at least 3 years with 1,875 hours in year prior to application; pass exam with 70% score
Exam Fee: $150 (100 questions, 240 minutes, covers electrical, motors and controls, piping, refrigeration and air conditioning, heating systems, air distribution, safety)
License Fee: $75
Scope: Provide installation and maintenance services in ALL areas of HVACR work
Insurance: $300,000 general liability and $100,000 property damage required

Maryland HVAC Examination Requirements

Examinations are administered by PSI on a daily basis at testing centers in Baltimore, College Park, Hagerstown, Crofton, Lanham, and Salisbury. All exams require a minimum 70% passing score.

Exam Topics Include: Electrical knowledge, motors and controls, piping, refrigeration and air conditioning, heating systems, air distribution systems, and safety.

If you fail an exam, you may retake it after 30-60 days (depending on license level).

Insurance Requirements for Contractors

General Liability Insurance: Minimum $300,000 required for Master, Master Restricted, and Limited contractors
Property Damage Insurance: Minimum $100,000 required
Workers' Compensation: Required if you have employees

Reciprocity Agreements

Maryland has reciprocal licensing agreements with Delaware and Virginia. If you hold an active, equivalent license in good standing from one of these states, you may apply for a Maryland license without taking the exam, provided you meet Maryland's experience requirements and licensing qualifications.

Renewal and Continuing Education

All Maryland HVACR licenses expire on October 1 in odd-numbered years and must be renewed every two years. The renewal fee is $20 for individual licenses and $75 for contractor licenses. There is currently no continuing education requirement for licensed HVAC contractors in Maryland.

Directory of Maryland Electric Companies

Maryland Investor-Owned Utilities

BGE, a subsidiary of Exelon Corporation, is the largest utility in Maryland. All four investor-owned utilities participate in the PJM Interconnection regional electricity market.

Maryland Electric Cooperatives

SMECO, founded in 1937, is one of the largest electric cooperatives in the country. Choptank Electric is a member-owned, not-for-profit cooperative serving the Eastern Shore.

Maryland Natural Gas Utilities

Frequently Asked Questions: Maryland HVAC Regulatory Oversight

• Does Maryland require a statewide HVAC license?
  Yes, Maryland requires all individuals performing HVAC work to be licensed by the Maryland Board of HVACR Contractors. This applies to apprentices, journeymen, and contractors alike.
• What is the penalty for performing HVAC work without a license in Maryland?
  Failure to be properly licensed may result in criminal sentences including imprisonment for up to 2 years per violation for subsequent offenses, or civil penalties up to $5,000 per violation.
• How long does it take to become a licensed HVAC contractor in Maryland?
  The typical pathway takes 6-7 years: 4 years as an apprentice (6,000 hours) to become a journeyman, then 2-3 additional years as a journeyman (1,875+ hours) before qualifying for contractor-level licenses.
• What is the difference between Master and Master Restricted licenses?
  A Master license allows work in ALL areas of HVACR (heating, cooling, refrigeration, ventilation, hydronic). A Master Restricted license limits work to one or more specific categories you choose.
• How much does it cost to get an HVAC license in Maryland?
  Apprentice license: $10; Journeyman license: $20 plus $150 exam; Master/Master Restricted/Limited contractor: $75 plus $150 exam. Background checks and registration may add additional fees.
• What insurance is required for Maryland HVAC contractors?
  Master, Master Restricted, and Limited contractors must carry general liability insurance of at least $300,000 and property damage insurance of $100,000. Workers' compensation is required if you have employees.
• Does Maryland have reciprocity with other states?
  Yes, Maryland has reciprocal licensing agreements with Delaware and Virginia. Holders of equivalent licenses in good standing from these states may apply for a Maryland license without taking the exam.
• Is there continuing education required in Maryland?
  Currently, there is no continuing education requirement for HVAC license renewal in Maryland.
• When do Maryland HVAC licenses expire?
  All Maryland HVACR licenses expire on October 1 in odd-numbered years (2025, 2027, etc.) and must be renewed every two years.
• Who regulates electric utilities in Maryland?
  The Maryland Public Service Commission (PSC) regulates investor-owned electric and gas utilities. Maryland has a deregulated electricity market where customers can choose their electricity supplier.

Resources for Maryland HVAC Contractors

Maryland Board of HVACR Contractors: www.dllr.state.md.us/license/hvacr/

Maryland Apprenticeship and Training Program: www.dllr.state.md.us/labor/appr/

Maryland Public Service Commission: www.psc.state.md.us/

PSI Examination Services: candidate.psiexams.com

Maryland Office of People's Counsel: opc.maryland.gov