Do I have to take the District of Columbia master HVAC technician exam if I'm licensed in Pennsylvania?

Yes. District of Columbia requires the trade exam on this path.

Do my Pennsylvania work hours count in District of Columbia?

Yes. Documented out-of-state experience counts toward District of Columbia's eligibility requirements.

Does it work the other way, from District of Columbia to Pennsylvania?

Not necessarily. Reciprocity is directed. Going from District of Columbia to Pennsylvania, the mechanism is not applicable.

Pennsylvania to District of Columbia: master HVAC technician license reciprocity

No credit· Start overVerified September 15, 2026· 10 sources

Pennsylvania does not issue a statewide master HVAC technician license, so there is nothing to transfer. Here is District of Columbia's standard path for out-of-state applicants.

Your origin state does not issue a statewide license at this level, so there is no license to transfer. The destination's standard out-of-state path is shown; expect to meet it in full.

Reference only, not legal advice. Rules change; confirm with the licensing board before you apply. Full disclaimer.

Out-of-state master or HVAC contractor-level licensee (any state)

Your out-of-state credentials give no advantage. You meet the destination's requirements from scratch.

The Board of Industrial Trades publishes no reciprocity for refrigeration and air conditioning mechanics, so a master-level HVAC licensee from any state applies through the DLCP online portal as a new applicant: passport-style photo, government ID, the $65 application fee, tax records and an employment verification letter signed by a master mechanic documenting 5 consecutive years of experience on systems larger than 25 compressor horsepower (or smaller systems for the limited license), and a CFC Universal certification, followed by the open-book master exam scheduled with PSI and the $110 license fee. D.C. Code § 47-2853.12(b) directs boards to waive the exam for an applicant licensed in good standing in a state whose standards were at least as high as the District's and which admits DC licensees in a like manner, and § 47-2853.08(2) lets the Board find another state's standards substantially equivalent and license by reciprocity or endorsement; an applicant may ask the Board to apply those provisions, but the Board's pages describe no such process for this trade. The national-certification substitute in § 47-2853.202(d) is written for the journeyman designation only. No District-law exam is published for master mechanics. A master who will serve as the designated master for a contractor company must post a $5,000 bond.

The Board's fee page refers exam fees to '§ 3500.3' without stating an amount; the PSI fee for the DC master refrigeration exam could not be confirmed from an official page. Whether experience verified by an out-of-state master mechanic satisfies § 47-2853.202(b), and which states the Board has listed as equivalent under § 47-2853.12(d), were not confirmed from an official page.

At a glance

Trade exam: Required
Law / code exam: Not required
Out-of-state hours: Count toward eligibility

What you must already have

You must document at least 5 years of qualifying work experience.Five consecutive years immediately preceding the application installing, maintaining, repairing and replacing refrigeration and air conditioning systems larger than 25 compressor horsepower (or under 25 hp for the master limited license), verified in writing by a master mechanic (D.C. Code § 47-2853.202(b)-(c)).

What you'll do to get licensed in District of Columbia

1Application fee. Pay the application fee ($65). Application fee (non-refundable), paid online with the DLCP application.
2Trade exam. Pass the destination's trade exam. DC Master Refrigeration and Air Conditioning Mechanic examination (regular or limited) administered by PSI, open book on the 2012 International Mechanical Code and Modern Refrigeration and Air Conditioning; schedule at psiexams.com after Board pre-approval.
3Exam fee. Pay the exam fee. PSI examination fee, amount set by 17 DCMR § 3500.3 (not stated on the Board page).
4License fee. Pay the license or certificate fee ($110). Mechanic license fee for a term ending September 30 of the next even-numbered year (renewal $155).
5Other. Tax records and an employment verification letter signed by a master mechanic detailing 5 consecutive years of experience, uploaded with the online application.
6Surety bond. Post a surety bond ($5,000) (if applicable). Refrigeration and Air Conditioning bond of $5,000 required only if the master is designated to a Refrigeration and Air Conditioning Contractor company (the company posts a separate $5,000 bond).
7Other. EPA Section 608 technician certification (Type I/II/III/Universal) to handle refrigerants; federal, does not expire. DLCP requires a 'CFC Universal Certification' card with the master application and D.C. Code § 47-2853.202(c) requires proof of chlorofluorocarbon certification for the master mechanic limited license.

Published fees on this path total $175, excluding exam-vendor fees, bonds, and insurance.

What you'll need to buy or arrange

Exam preparation

Most boards contract PSI, Prov, or ICC for exams. Check which code edition the exam is written to before buying a prep course.

Trade exam
Exam fee
Other

Surety bond

A license or contractor bond is bought from a surety, not the state. Price is a small percentage of the bond amount and depends on your credit.

Surety bond · $5,000 · if applicable

How District of Columbia licenses master HVAC technicians

District of Columbia master HVAC technician · “Master Refrigeration and Air Conditioning Mechanic”

Statewide license

Verified September 15, 2026· 7 sources

Issued by DC Board of Industrial Trades (Department of Licensing and Consumer Protection)

The District's highest person-held HVAC credential is the Master Refrigeration and Air Conditioning Mechanic license issued by the Board of Industrial Trades (DLCP); a Master Mechanic Limited license covers systems of 25 compressor horsepower and below. A Refrigeration and Air Conditioning Contractor license is a separate business credential that must name a designated DC-licensed master mechanic, and a master designated to a contractor must post a $5,000 bond (the company posts another $5,000). Under D.C. Code § 47-2853.202(b) a master applicant must show 5 consecutive years immediately before applying installing, maintaining, repairing and replacing refrigeration and air conditioning systems larger than 25 compressor horsepower, verified in writing by a master mechanic (the limited license requires 5 years on smaller systems plus chlorofluorocarbon certification); DLCP also requires tax records and a CFC Universal certification, and the applicant passes the PSI-administered open-book master exam. Fees are a $65 application fee and a $110 mechanic license fee; licenses expire September 30 of even-numbered years and renew for $155. The Board publishes no reciprocity for refrigeration and air conditioning mechanics.

Moving to District of Columbia Leaving District of Columbia

Why Pennsylvania has nothing to transfer

Pennsylvania master HVAC technician

Licensed by cities and counties

Verified September 15, 2026· 18 sources

Pennsylvania issues no statewide master HVAC, mechanical or HVAC contractor license; none of the Department of State's licensing boards covers the trade, and the Attorney General's Home Improvement Contractor registration (required of businesses doing residential remodeling work, including HVAC replacement in existing homes) is a no-exam consumer-protection registration rather than a license. The master-level credential exists only in cities that have chosen to license the trade, under names that vary: Pittsburgh's Mechanical/HVAC Trade License (issued to an individual with four years of experience who has passed an ICC National Standard Master Mechanical exam; $120 in 2025, eight CE hours a year), Reading's Master Mechanical Heating Contractor license (two years as a licensed journeyman plus the ICC F29-N Master Mechanical exam; $90), Erie's master Mechanical and HVAC Installer licenses, and Scranton's Master Mechanical Contractor license. Philadelphia and Altoona require only a general contractor license (business-level, insurance and no exam) to pull mechanical permits, and Allentown and Harrisburg publish no HVAC license at all. There is no state-level recognition of an out-of-state master HVAC license, but Pittsburgh accepts any passed ICC master mechanical exam from any code year and, on the License Officer's review, equivalent exams from other states, and Reading issues a reciprocal master license ($190) to holders of an equivalent license from a first-, second- or third-class city or from a state with a state license and equal standards. A master from another state should expect to document experience, present an ICC master mechanical exam score, and apply separately in each city where they will pull permits.

How local licensing works in Pennsylvania

How local licensing works. With no state HVAC board, each Pennsylvania city that licenses the trade does so under its own ordinance. The credential that travels best between them is the ICC National Standard Master Mechanical examination, which Pittsburgh and Reading both use and which Reading's reciprocity practice implicitly relies on.

Philadelphia. No HVAC or mechanical trade license. Mechanical permits must be performed by a business holding the general Contractor License: $126 a year (including a $20 application fee), general liability of $500,000 per occurrence, $300,000 auto liability, workers' compensation, a Commercial Activity License and tax ID, tax compliance, and an OSHA 30 course for supervisors; there is no exam or experience requirement and no out-of-state provision. Ductwork on the job must be done by licensed sheet metal technicians or apprentices employed by the contractor. Businesses working only on existing one- or two-family homes may register as home improvement contractors instead.

Pittsburgh. The Department of Permits, Licenses and Inspections issues the Mechanical/HVAC Trade License to individuals ('Trade Licenses are issued to individuals, not to companies'), required to install, erect, enlarge, repair, alter, remove, convert or replace any mechanical system in the city (Pittsburgh Code 741). New applicants provide proof of passing the City-proctored Master Mechanical exam or an ICC Standard Master Mechanical exam for any code year, and a resume or employer statement showing four or more years of practical experience (notarized statement if self-employed). PLI's rules state that 'equivalent certification testing programs from states other than Pennsylvania shall be accepted as proof of compliance of the testing requirements upon review and determination of equivalence by the License Officer'. The 2025 fee is $120 (initial and renewal); licenses expire 365 days after issue and renewal requires eight hours of continuing education in the prior twelve months. Insurance ($1,000,000 per occurrence / $2,000,000 aggregate general liability plus workers' compensation) is not needed at application but must be on file before any permit is issued. Applications go through OneStopPGH.

Reading. The Master Mechanical Heating Contractor license ($90 a year) requires a valid mechanical journeyman license, at least two years employed as a mechanical journeyman by a registered mechanical contractor, and a passing ICC F29-N Master Mechanical exam (or its successor). A reciprocal master license ($190, including a one-time reciprocation fee and the annual fee) may be issued to the holder of an equivalent license from a first-, second- or third-class U.S. city issued by an equivalent board of examiners with standards equal to Reading's; the applicant attaches the other jurisdiction's current requirements. As of 7/7/2023 Reading lists reciprocity with Harrisburg, Philadelphia, Scranton, Lancaster and Pittsburgh and with 'most, if not all, surrounding states with a state license'.

Erie. Master licenses are required for Mechanical and HVAC Installers, with a separate Refrigeration license, and 'Only Master License holders are able to obtain a permit'; applications are reviewed by the Trades Licensing Board, which also handles temporary licenses. The ordinance defines the Master Mechanical Contractor as one who contracts to install, erect, alter, extend, maintain or repair heating and ventilation, air-conditioning and refrigeration systems, process piping and sheet metal work. Fees, insurance and any reciprocity provisions could not be opened.

Scranton. Issues a Master Mechanical Contractor license through a combined master electrical/mechanical/plumbing/general contractor application; the application's terms could not be opened. Reading treats Scranton as a reciprocal city.

Altoona. HVAC contractors need a city business license, and for commercial work a City of Altoona Contractor's License with liability and workers' compensation insurance; residential work requires only the state Home Improvement Contractor registration.

Allentown and Harrisburg. Neither publishes an HVAC or mechanical license (Allentown licenses electricians, plumbers and sheet metal workers; Harrisburg licenses electricians, plumbers and low-voltage installers).

Out-of-state holders. Pittsburgh's acceptance of any ICC master mechanical exam (and, on review, equivalent out-of-state exams) and Reading's reciprocal license are the only published accommodations; neither waives the experience documentation or local fees. Everywhere else the out-of-state license is irrelevant and the contractor obtains the local business-level license.

Moving to Pennsylvania Leaving Pennsylvania

Common questions

Do I have to take the District of Columbia master HVAC technician exam if I'm licensed in Pennsylvania?: Yes. District of Columbia requires the trade exam on this path.
What does it cost to get a District of Columbia master HVAC technician license from Pennsylvania?: Published fees on this path total $175, not counting exam vendor fees or bonds.
Do my Pennsylvania work hours count in District of Columbia?: Yes. Documented out-of-state experience counts toward District of Columbia's eligibility requirements.
Does it work the other way, from District of Columbia to Pennsylvania?: Not necessarily. Reciprocity is directed. Going from District of Columbia to Pennsylvania, the mechanism is not applicable.

Sources

D.C. Code § 47-2853.08 - Powers of the boards (reciprocity and endorsement) · D.C. Code § 47-2853.08(2) · Council of the District of Columbia · Statute · verified September 15, 2026Each board may determine whether another jurisdiction's licensure standards, or a national certifying organization's certification, are substantially equivalent and authorize licensure by reciprocity or endorsement for an applicant licensed and in good standing in a state whose requirements were substantially equivalent at the time of licensure and which admits District licensees in a like manner.
D.C. Code § 47-2853.12 - License, certification, and registration criteria; waiver · D.C. Code § 47-2853.12(b)-(d) · Council of the District of Columbia · Statute · verified September 15, 2026(b) a board 'shall waive the requirements for passage of an examination or other proof of fitness' for a person licensed in good standing in a state whose standards were at least as high as the District's and which admits District licensees in a like manner, or who holds an acceptable national certification. (c)(4) an applicant for licensure as a journeyman refrigeration and air conditioning mechanic under § 47-2853.202 is exempt from any District-law examination. (d)-(d-1) each board must keep a list of states and national certifying organizations whose standards qualify, and the Board of Industrial Trades must update its list of national certifying organizations annually.
D.C. Code § 47-2853.201 - Scope of practice for refrigeration and air conditioning mechanics · D.C. Code § 47-2853.201 · Council of the District of Columbia · Statute · verified September 15, 2026A refrigeration and air conditioning mechanic is a person who designs, installs, maintains or alters mechanical systems for refrigeration or air conditioning of any public or private building or vehicle.
D.C. Code § 47-2853.202 - Refrigeration and air conditioning mechanics: eligibility requirements · D.C. Code § 47-2853.202 · Council of the District of Columbia · Statute · verified September 15, 2026(a) apprentices are registered without examination and work only under the direct personal supervision of a licensed master mechanic. (b) master mechanic: employed installing, maintaining, repairing and replacing refrigeration and air conditioning systems larger than 25 compressor horsepower for at least 5 consecutive years immediately preceding the application, verified in writing by a master mechanic. (c) master mechanic limited: 5 consecutive years on systems under 25 compressor horsepower plus proof of chlorofluorocarbon certification. (d) the Board shall accept, in lieu of examination, experience or other tests of skill, a certificate from a national certifying organization (a nationally recognized trade organization, non-union sponsor or labor union registered with the federal Bureau of Apprenticeship Training, U.S. DOL or the DC Apprenticeship Council) that the applicant completed its apprenticeship, passed its exam, is designated a journeyman refrigeration and air conditioning mechanic and has not been disciplined.
17 DCMR Chapter 3 - Refrigeration and Air Conditioning Licensing (§§ 303, 304, 306, 307, 309, 310) · 17 DCMR §§ 303.6-303.7, 304, 306, 307, 309 · DC Office of Documents and Administrative Issuances (DCMR) · Admin Rule · verified September 15, 2026Section texts downloaded from the chapter listing (Word files). § 303.6: no person may engage in the mechanical work of installing, maintaining, repairing or replacing refrigeration and air conditioning equipment without first obtaining a Journeyman Refrigeration and Air Conditioning Mechanic's license, issued on the basis of a qualifying examination and test of skill; § 303.5: a person, firm or corporation in the business must hold a Refrigeration and Air Conditioning Contractor, Master Mechanic or Master Mechanic Limited license. § 306 (master): 5 years on systems larger than 25 compressor horsepower immediately preceding the application plus an examination; § 307 (master limited): 5 years on systems of 25 hp or less plus an examination. § 309.3 still lists 1955-era exam and license fees ($35 contractor, $15 master, $10 master limited) that DLCP's current fee table supersedes. These rules derive from Commissioners' Order No. 55-2029 and predate the 1999 licensing statute.
DC DLCP - Board of Industrial Trades (fees, renewal dates, board members) · District of Columbia Department of Licensing and Consumer Protection (DLCP) · Agency Page · verified September 15, 2026Fetched through the r.jina.ai text proxy. Fee table for Refrigeration and Air Conditioning Mechanics: application $65; license Mechanic $110 (up to 2 years), Contractor $120; renewal Mechanic $155, Contractor $180; late renewal $50; examination/re-examination 'See §3500.3'; reinstated or inactive Mechanic $155, Contractor $180; duplicate license $30; verification of records $30. Refrigeration and Air Conditioning licenses expire September 30 in even-numbered years. Board members include two Master Refrigeration and Air Conditioning Mechanics.
DC DLCP - Board of Industrial Trades landing page (apply, items needed, examination, reciprocity) · District of Columbia Department of Licensing and Consumer Protection (DLCP) · Agency Page · verified September 15, 2026Fetched through the r.jina.ai text proxy because dlcp.dc.gov returns 403 to direct fetches. Lists the items needed for a Refrigeration/Air-Conditioning application (certificate of completion, 'CFC Certification (Master ONLY)', employment verification letter, passport photo, government ID, card for fees), the online application portal (govservices.dcra.dc.gov/oplanewlicense), PSI exam scheduling (psiexams.com, 855-557-0616), the Refrigeration and Air Conditioning bond form for trade contractors, and a Reciprocity section that names only Maryland and Virginia electricians (and, via a linked bulletin, Maryland plumbers); no refrigeration or air conditioning reciprocity is published.
DC DLCP - Refrigeration/Air-Conditioning License (Limited and Regular) Application Instructions - Apprentice, Journeyman, and Master · District of Columbia Department of Licensing and Consumer Protection, Occupational and Professional Licensing · Form · verified September 15, 2026Published at dlcp.dc.gov/node/1634416 (Dec. 13, 2022). Licenses are offered for refrigeration and air-conditioning; limited licenses cover work at 25 compressor horsepower and below; all expire September 30 of even-numbered years. Table: Apprentice - no experience, employment verification or school enrollment; Journeyman by exam - 3 years' experience, tax records, employment verification letter, CFC Universal Certification; Journeyman by waiver - certificate of completion or official transcripts of an apprenticeship; Master by exam - 5 years' experience, tax records, CFC Universal Certification, employment verification letter. Employment letters must be signed by a master. A graduate of an approved apprenticeship (classroom work plus 8,000+ hours/4 years OJT under a master) may waive the journeyman exam only. The exam is open book on the 2012 International Mechanical Code and Modern Refrigeration and Air Conditioning (2004).
DLCP bulletin - Refrigeration & Air Conditioning Mechanic License Renewal Notice (July 27, 2026) · District of Columbia Department of Licensing and Consumer Protection, Board of Industrial Trades · Agency Page · verified September 15, 2026Renewal applications are due by the September 30, 2026 expiration through the DLCP online portal (Access DC account). If a master Refrigeration/Air Conditioning Mechanic is designated to a Refrigeration/Air Conditioning Contractor company, the Board requires a $5,000 bond for the master and a $5,000 bond for the contracting company (Refrigeration and Air Conditioning Bond Form).
EPA Section 608 Technician Certification Requirements · 40 CFR Part 82, Subpart F (Clean Air Act §608) · U.S. Environmental Protection Agency · Other · verified September 15, 2026Federal requirement in every state: technicians who maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere must be certified (Type I small appliances, Type II high-pressure, Type III low-pressure, Universal). Apprentices under direct supervision are exempt. Certification does not expire; the core exam must be proctored for Universal certification. State HVAC boards commonly require it before licensure, but it is not itself a state license.

Verified dates are when a person last opened each source and confirmed the facts above. Cite the board, not us.

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