Maryland · HVAC technician licensing · verified July 2026

Maryland HVAC technician license requirements

Do you need a license to work as an HVAC technician in Maryland?

Maryland licenses HVAC technicians statewide, so one credential is valid across the whole state.

Federal EPA Section 608 certification is additionally required nationwide for anyone handling refrigerants.

What licenses does Maryland issue?

The Maryland State Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors (Maryland Department of Labor, Division of Occupational and Professional Licensing) issues the credentials below for this trade. Boards often list further classes for specialties and business licenses; these are the ones this page covers.

Hours are what each class asks for on its own terms. Where a senior class shows fewer than a journeyman, the board is counting time served after the earlier license rather than from the start; the prerequisite column says which.

Source: Maryland State Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors (Maryland Department of Labor, Division of Occupational and Professional Licensing) (labor.maryland.gov). Verified July 2026.

Journeyman: Licensed as an apprentice for at least 4 years, during which at least 6,000 hours of training in providing HVACR services under the direction and control of a licensed HVACR contractor

Journeyman Restricted: Licensed as an apprentice for at least 3 years, during which at least 1,875 hours of training under the direction and control of a licensed HVACR contractor

Limited Contractor: Licensed as a journeyman and regularly and principally employed in providing HVACR services for at least 2 years, and worked a minimum of 1,000 hours in the year prior to application

Master Restricted: Licensed as a journeyman and regularly and principally employed to provide HVACR services for at least 3 years, and worked a minimum of 1,875 hours in the year prior to application

Master: Licensed as a journeyman and regularly and principally employed to provide all areas of HVACR services for at least 3 years under the direction and control of an HVACR master, and worked a minimum of 1,875 hours in the year prior to application

How many hours do you need in Maryland?

Maryland requires 6,000 hours of on-the-job experience for a Journeyman HVAC technician license. At a 40-hour week the on-the-job portion is roughly 3 years of full-time work.

What exam does Maryland require?

Journeyman examination (70% passing score). Administered by PSI Examination Services (testing centers in Baltimore, College Park, Hagerstown, Lanham, Salisbury).

Journeyman Restricted examination (70% passing score). Administered by PSI Examination Services.

Master examination (70% passing score). Administered by PSI Examination Services.

Source: examination page (labor.maryland.gov). Verified July 2026.

How much does a Maryland HVAC technician license cost?

Getting a Journeyman HVAC technician license in Maryland costs $25 in board fees, before any training. That is the initial license fee charged once. No board publishes this total, so it is added up here from the schedule it does publish. An exam is required and its fee is not in that figure, because no amount for it appears in the board material this page is built from. Check the board's current fee schedule before budgeting.

• Initial license fee$25

How often do you renew, and what continuing education is required?

Renewal period: 2 years

How does the apprenticeship route work?

The state Apprentice license (no prerequisites, $12) is the mandatory entry point; hours worked under the direction and control of a licensed HVACR contractor accumulate toward Journeyman Restricted (3 years / 1,875 hours) or full Journeyman (4 years / 6,000 hours). Graduates of approved Maryland HVACR training programs may have the journeyman-level exam waived if they apply within 2 years of graduation.

Which states does Maryland have license reciprocity with?

Maryland appears in 2 published reciprocal licensing agreements for this trade, covering Delaware, Virginia. Boards write these as agreements between two states rather than as a one-way list, and some publish the list while their counterpart does not, so this counts every agreement naming Maryland from either side. Recognition is never automatic: the board you apply to decides, and most require the original license to have been earned by examination and to be in good standing.

How does Maryland compare to neighboring states?

Requirements stop at the state line, which matters if you live near one or expect to move. Here is what the neighboring states ask of the same trade.

Source: state licensing boards. Verified July 2026.

How does Maryland compare nationally?

6 states publish an explicit hour figure for this trade, and they range from 3,000 to 10,000 hours. Maryland's 6,000 hours is what 2 of them ask, making it the standard rather than an outlier; 1 state asks less and 3 ask more. The full comparison is on the hours by state table.

Sources and verification

Other states with published requirements for this trade: Massachusetts, Michigan, Mississippi, Nevada, New Hampshire.

Price the whole path with the license cost estimator, or weigh earning against paying for school with the apprenticeship comparison. Back to HVAC technicians overview.

Licensing requirements change between our verification sweeps. This page is informational only, so confirm current requirements with Maryland State Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors (Maryland Department of Labor, Division of Occupational and Professional Licensing) before making decisions. Not legal advice.