Do I have to take the Maryland master HVAC technician exam if I'm licensed in Indiana?

Yes. Maryland requires the trade exam on this path.

What does it cost to get a Maryland master HVAC technician license from Indiana?

Published fees on this path total $244.50, not counting exam vendor fees or bonds.

Do my Indiana work hours count in Maryland?

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

Does it work the other way, from Maryland to Indiana?

Not necessarily. Reciprocity is directed. Going from Maryland to Indiana, the mechanism is not applicable.

Indiana to Maryland: master HVAC technician license reciprocity

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

Indiana does not issue a statewide master HVAC technician license, so there is nothing to transfer. Here is Maryland'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 without a reciprocal agreement

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

A master or contractor-level HVAC licensee from a state other than Delaware or Virginia must qualify for an original Maryland master license by examination; the Board's FAQ says reciprocal licensing is available only where an agreement exists. Bus. Reg. §9A-302(b) frames the 3-year requirement as employment under a Maryland journeyman-or-higher license under a master contractor, but §9A-302(g) lets the Board credit up to 6 years of HVACR work experience that does not meet that pattern when it provided comparable experience, and up to 3 years of formal study, so documented out-of-state experience can be submitted to PSI (which reviews eligibility for the Board) toward the master exam. The applicant passes the 100-question open-book master exam with 70% ($150), registers the license, pays the $94.50 license fee, and files a certificate of insurance ($300,000 general liability, $100,000 property damage) if they will contract work. Bus. Reg. §9A-305 authorizes the Board, by majority vote, to waive the exam for a licensee of any state that waives its exam for Maryland licensees to a similar extent, but the Board has published that waiver only for Delaware and Virginia. There is no separate law or business exam.

Whether PSI accepts out-of-state journeyman-level experience toward the 3-year master requirement without a Maryland journeyman license was not confirmed from an official page; the PSI bulletin says an applicant who does not meet the standard master criteria may instead sit for a Master Restricted exam with 6 years of qualifying experience. The Board's fee page lists no separate application fee.

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 3 years of qualifying work experience.At least 3 years of active experience regularly and principally providing HVACR services under a journeyman-or-higher license under the direction and control of a master HVACR contractor, with at least 1,875 hours in the year before application (Bus. Reg. §9A-302(b)); the Board may credit up to 6 years of comparable work experience and up to 3 years of formal study under §9A-302(g).

What you'll do to get licensed in Maryland

1Trade exam. Pass the destination's trade exam. Maryland Master HVACR Contractor examination administered by PSI: 100 questions, 70% to pass, 240 minutes, open book (2012 International Mechanical Code, Modern Refrigeration and Air Conditioning, ACCA Manual J, 29 CFR 1926, ACCA Ductulator).
2Exam fee. Pay the exam fee ($150). PSI examination fee for the Master Contractor exam, valid for one attempt (Master Restricted specialties $50 each); a failed exam may be retaken after 30 days with a new fee.
3License fee. Pay the license or certificate fee ($94.50). Master license fee, nonrefundable, effective July 1, 2025 (master restricted $31.50 per area licensed, capped at three areas; limited $94.50).
4Insurance. Carry the required insurance. Certificate of insurance if the licensee will sign or approve HVACR contracts: general liability at least $300,000 and property damage at least $100,000 (combined at least $400,000), State Board of HVACR Contractors named as certificate holder (Bus. Reg. §9A-402).
5Other. EPA Section 608 technician certification (Type I/II/III/Universal) to handle refrigerants; federal, does not expire. The Maryland Board's pages do not list it as a licensing prerequisite, but it applies to every technician who services refrigerant-containing equipment.

Published fees on this path total $244.50, 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 · $150
Other

Liability insurance

Some states require proof of general liability or workers' compensation coverage at licensing time.

Insurance

How Maryland licenses master HVAC technicians

Maryland master HVAC technician · “Master HVACR Contractor”

Statewide license

Verified September 15, 2026· 11 sources

Issued by Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors (Department of Labor)

Maryland's highest person-held HVACR credential is the Master HVACR Contractor license issued by the Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors; it authorizes installation and maintenance in all areas of HVACR work and is the license under which HVACR contracting is done. The Board also issues Master Restricted (one or more areas: forced air, hydronic, ventilation, air conditioning, refrigeration) and Limited Contractor (maintenance and repair only) licenses. A new master must have been licensed as a journeyman (or journeyman restricted, limited or master restricted) and regularly and principally employed providing HVACR services under a master for at least 3 years, with 1,875 hours in the year before applying, and pass the PSI master exam (100 questions, 70%, 240 minutes, open book, $150); the license fee is $94.50. A master, master restricted or limited licensee who signs or approves HVACR contracts must carry $300,000 general liability and $100,000 property damage insurance with the Board as certificate holder. The Board reciprocates only with Delaware and Virginia; licensees of those states who qualify are licensed without the Maryland exam.

Moving to Maryland Leaving Maryland

Why Indiana has nothing to transfer

Indiana master HVAC technician

Licensed by cities and counties

Verified September 15, 2026· 14 sources

Indiana has no statewide master HVAC, mechanical contractor or HVAC contractor license and no state HVAC board; the Indiana Professional Licensing Agency's list of regulated professions contains no heating, air conditioning or refrigeration trade, and Indianapolis's exam information states that licensing is at the discretion of each municipality. The master-level credential exists only locally and under varying names: Indianapolis/Marion County licenses Heating and Cooling Contractors (Air Conditioning A, B, D, Refrigeration and High Pressure Steam) whose craft license holder passed the Prov exam, Allen County (Fort Wayne) issues an HVAC Supervisors License (Air Conditioning A or B, Sheet Metal C), Evansville licenses Master Heating, Ventilating and Air Conditioner Installers and Master Refrigeration Installers by local examination, South Bend registers HVAC contractors on proof of a passing ICC National Standard Master Mechanical exam, and Terre Haute issues a Mechanical license to contractors employing a NATE, HVAC Excellence, RSES, Experior or Indianapolis-certified person. An out-of-state master HVAC or mechanical contractor license carries no state-level recognition in Indiana. Indianapolis is the only jurisdiction with a published reciprocity procedure, and it turns on the exam rather than the state: a license earned on a Prometric/Experior or Prov exam with a 70% score, certified by the issuing agency, can be accepted by the Board of Heating and Cooling Examiners. Elsewhere a master must apply in each city or county where they will pull permits, which in practice means holding an ICC or Prov national exam score or passing the local exam, then meeting that jurisdiction's bond and insurance rules. EPA Section 608 certification is required for refrigerant work in every jurisdiction.

How local licensing works in Indiana

How local licensing works. Indiana regulates plumbers at the state level but has never created a state HVAC or mechanical contractor license. Each city or county building department decides whether and how to license HVAC contractors and master-level installers, and there is no statewide portability rule. Prov (Indianapolis) and ICC/Prometric (South Bend, Terre Haute) national exams are the most portable credentials inside the state.

Indianapolis / Marion County. The Department of Business and Neighborhood Services licenses Heating and Cooling Contractors in five types: Air Conditioning A (unrestricted), Air Conditioning B (25 tons cooling / 500,000 BTU heating, boilers to 15 psig steam), Air Conditioning D (5 tons / 300,000 BTU), Refrigeration, and High Pressure Steam. A craft license holder submits an exam packet ten business days before the monthly Board of Heating and Cooling Examiners meeting: application, resume, employer letters verifying five years of HVACR experience (education may substitute in part), three industry reference letters, EPA certification card, driver's license; after a board interview the applicant sits the Prov exam and needs 70%. The business then files a $5,000 surety bond (obligee the Consolidated City of Indianapolis, expiring 12/31/2027), a $500,000/$100,000 (or $500,000 combined) liability certificate naming the City-County as additional insured, and workers' compensation proof. 2026 fees: new license holder $377 (Jan-Jun) or $283 (Jul-Dec), new business license $247 or $185 (none for sole proprietors), renewals $247 each; licenses expire December 31 of odd-numbered years. Reciprocity: the board may accept a comparable license from any municipality or government agency if the issuing agency certifies directly to the Department that the license is current and unsuspended, the license was issued on a standardized Prometric (formerly Thomson Prometric / Experior / Block) or Prov exam passed with at least 70%, and the vendor verifies the exam is equivalent to the Indianapolis exam; the applicant still documents five years of experience, three references and EPA certification, appears before the board, and then licenses with bond, insurance and fees.

Fort Wayne / Allen County. The Building Department's HVAC Supervisors License (Air Conditioning A without BTU limit, Air Conditioning B up to 500,000 BTU heating and 25 tons cooling, or Sheet Metal C) requires four years and 7,000 hours as a journeyman in the same line of work (or eight years and 14,000 hours of documented OJT plus 30 days as a licensed journeyman) and a passing examination administered by the Building Commissioner or an approved testing facility; hydronic and low-temperature refrigeration work is reserved to Non-Sanitary Piping licensees. The supervisor qualifies an HVAC Contractors Business Registration ($90; supervisor license $25). Section H grants reciprocity subject to the trade's guidelines and minimum qualifications, and allows the Building Commissioner to grant reciprocity at his discretion to applicants who present the necessary credentials.

Evansville. The Building Commission licenses Master Heating, Ventilating and Air Conditioner Installers (forced-air heating, air conditioning up to five tons with field piping or fifteen tons packaged, ventilation, ductwork and sheet metal; boilers and steam or hot-water systems require the Master Steam Fitter license) and Master Refrigeration Installers. Applicants prove four years of experience with three notarized letters on letterhead (EMC 5.70.060), are approved to test by the Board of Examiners of HVAC, Steam Fitters, and Refrigeration Installers, sit the exam through Ivy Tech and must score 75% on each part of the master mechanical, sheet metal, ventilation or refrigeration exam, then receive a provisional license on paying the $300 fee and providing insurance and the $25,000 surety bond required by EMC 5.70.070; renewal is $125 ($225 for two years) with board-set continuing education. The ordinance notes the master HVAC license does not permit air conditioning work without EPA certification.

South Bend. The Building Department registers HVAC contractors (including refrigeration and hood installers) after review of an application showing at least 21 years of age, journeyman and contractor experience (education may substitute for part of four years), and a passing score of at least 70% on the ICC National Standard Master Mechanical exam (F29-N) via Pearson Vue or Prometric or a comparable nationally recognized exam approved by the Board; a $5,000 surety bond naming the City of South Bend/St. Joseph County, workers' compensation proof, a $50 application review fee and $125 annual registration are required.

Terre Haute. The Engineering Department's Mechanical license is issued to a contractor that employs at least one full-time employee certified by NATE, HVAC Excellence, RSES, Experior Assessment, the City of Indianapolis HVAC Air Conditioning Class A, or an equivalent, with a $10,000 bond ($25,000 for right-of-way work), $500,000 general liability ($1,000,000 for right-of-way work) and workers' compensation or a WCE-1 exemption; $350 original registration, $175 annual renewal.

Out-of-state holders. Only Indianapolis publishes a reciprocity procedure, and it accepts a license from any jurisdiction (municipal or state) that was earned on an equivalent Prometric/Experior or Prov exam, subject to board approval. Allen County has a discretionary reciprocity clause; South Bend and Terre Haute accept national exam scores and industry certifications regardless of where they were earned; Evansville requires its own examination. Expect to license separately in each jurisdiction and to meet each one's bond and insurance rules.

Moving to Indiana Leaving Indiana

Common questions

Do I have to take the Maryland master HVAC technician exam if I'm licensed in Indiana?: Yes. Maryland requires the trade exam on this path.
What does it cost to get a Maryland master HVAC technician license from Indiana?: Published fees on this path total $244.50, not counting exam vendor fees or bonds.
Do my Indiana work hours count in Maryland?: Yes. Documented out-of-state experience counts toward Maryland's eligibility requirements.
Does it work the other way, from Maryland to Indiana?: Not necessarily. Reciprocity is directed. Going from Maryland to Indiana, the mechanism is not applicable.

Sources

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.
Md. Code, Business Regulation §9A-101 - Definitions (HVACR licenses) · Md. Code, Bus. Reg. §9A-101 · Maryland General Assembly · Statute · verified September 15, 2026Defines the journeyman license (HVACR services under the direction and control of a licensed contractor), journeyman restricted, master, master restricted, limited and apprentice licenses; 'licensed contractor' means a master, master restricted or limited licensee, not a journeyman or apprentice.
Md. Code, Business Regulation §9A-302 - Qualifications of applicants · Md. Code, Bus. Reg. §9A-302 · Maryland General Assembly · Statute · verified September 15, 2026(b) master: regularly and principally employed providing HVACR services under a journeyman, journeyman restricted, limited or master restricted license for at least 3 years under the direction and control of a master contractor, 1,875 hours in the year before application, and pass the Board exam. (e) journeyman: held an apprentice license at least 4 years and completed at least 6,000 hours of training under a licensed contractor, and pass the exam. (g) the Board may credit up to 3 years of formal study, may credit up to 6 years of HVACR work experience that fails to meet those requirements if it provided comparable experience and the failure was not the applicant's fault, and shall credit up to 3 years for teaching HVACR courses.
Md. Code, Business Regulation §9A-305 - Waiver of examination for out-of-state licensees (reciprocity) · Md. Code, Bus. Reg. §9A-305 · Maryland General Assembly · Statute · verified September 15, 2026On a majority vote of its authorized membership the Board may waive the examination for an individual licensed in another state as a journeyman, journeyman restricted, master, master restricted or limited HVACR contractor, if the applicant pays the application fee, meets the qualifications otherwise required, holds an active license in good standing, holds an equivalent license, and became licensed after meeting requirements at least equivalent to Maryland's including the years of work experience under §9A-302(b), (c) and (d); and only if the other state waives its exam for Maryland licensees to a similar extent.
Md. Code, Business Regulation §9A-309 - Term and renewal of licenses · Md. Code, Bus. Reg. §9A-309 · Maryland General Assembly · Statute · verified September 15, 2026Licenses expire on the first October 1 in an odd-numbered year after issuance and renew for 2-year terms; contractor licensees must submit proof of insurance at renewal; inactive status is available.
Md. Code, Business Regulation §9A-402 - Insurance requirement for contractor licensees · Md. Code, Bus. Reg. §9A-402 · Maryland General Assembly · Statute · verified September 15, 2026A master, master restricted or limited licensee may not contract to provide HVACR services unless covered by at least $300,000 general liability and $100,000 property damage insurance (the employer's policy may cover the licensee); journeymen and apprentices employed by a licensee need no separate insurance; the Board may not issue a license to an applicant subject to the requirement without proof of insurance.
Maryland HVACR Board - Apply for an Original License (license categories) · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 15, 2026Describes each category: master (all areas), master restricted (one or more areas), limited contractor (maintain and repair only), journeyman (HVACR services under the direction and control of a licensed contractor), journeyman restricted, and apprentice (no prerequisites). Offers an 'Original Journey and Journey Restricted WITHOUT Exam' application for graduates of a Maryland Apprenticeship and Training Council program with a Department of Labor certificate of completion, and separate post-exam applications for journey and master/master restricted/limited licenses.
Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors (HVACR) - Home · Md. Code, Bus. Reg. Title 9A; COMAR 09.15 · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 15, 2026States that the Board licenses and regulates individuals who provide commercial and residential HVACR services under Business Regulation Article 9A and COMAR 09.15, adopts codes, investigates complaints and may impose civil penalties up to $5,000 per violation.
Maryland HVACR Board - Taking the Exams · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 15, 2026Before applying for a Journeyman, Restricted Journeyman, Master or Restricted Master license you must pass the PSI examination; PSI provides all testing for the Board at centers in Baltimore, College Park, Hagerstown, Lanham and Salisbury; applicants apply to PSI with proof of eligibility and should read the Candidate Information Bulletin. Links the reciprocal license page and the journeyman-without-examination route.
Maryland HVACR Board - Licensing Frequently Asked Questions · Maryland Department of Labor, Division of Occupational and Professional Licensing · Faq · verified September 15, 2026FAQ 6: every contractor who provides HVACR services in Maryland must hold a Board license regardless of any other state's license, even without a Maryland office. FAQ 9: HVACR licensees of other states may apply through reciprocity without sitting for the Maryland exam only where the other state and the Board have an agreement; 'The Board currently has reciprocal agreements with Delaware and Virginia.' Also: exam applications are processed by PSI, the exam fee must accompany the application, a failed exam may be retaken after 30 days (60 days for later attempts) with a new fee, and passing candidates register the license with the Department.
Maryland HVACR Board - Fees (COMAR fee schedule effective July 1, 2025) · COMAR 09.15.01.03 · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 15, 2026Nonrefundable fees as of July 1, 2025: Master $94.50; Master Restricted $31.50 for each area licensed (capped at three areas); Limited $94.50; Journeyman $25.00; Journeyman Restricted $25.00 for each area; Apprentice $12.00; Inspector $56.00; Letter of Good Standing $25; Inactive license $31.50. The page lists no separate application, reciprocity or renewal fee.
Maryland HVACR Board - Insurance Requirements · Md. Code, Bus. Reg. §9A-402 · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 15, 2026Master, master restricted and limited contractor applicants who sign or approve HVACR contracts must carry general liability insurance of at least $300,000 and property damage liability of at least $100,000 (combined at least $400,000), with the licensee's name, policy number and expiration on the certificate and the State Board of HVACR Contractors named as certificate holder. Contracting without the insurance is a misdemeanor.
Maryland HVACR Board - Licensing Requirements (master, master restricted, limited, journeyman) · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 15, 2026Master: licensed as a journeyman and regularly and principally employed providing all areas of HVACR services for at least 3 years under a HVACR master, 1,875 hours in the year before applying, 70% on the master exam, currently holds a journeyman or higher license; insurance if contracting. Master restricted and limited (2 years, 1,000 hours) listed likewise. Journeyman: licensed as an apprentice for at least 4 years with at least 6,000 hours of training under a licensed HVACR contractor, 70% on the journeyman exam, currently holds an apprentice license.
Maryland HVACR Board - Apply for a Reciprocal License · Maryland Department of Labor, Division of Occupational and Professional Licensing · Agency Page · verified September 15, 2026Reciprocal licensing is permitted only where the other state and the Maryland HVACR Board have entered into a reciprocal agreement and the individual meets the qualifications of Maryland's HVACR law, holds an active license in good standing in the other state, holds a license equivalent to the Maryland license, and became licensed there after meeting requirements at least equivalent to Maryland's, including the years of work experience. 'The Board currently has reciprocal agreements with Delaware and Virginia.' Links the reciprocity application for masters, master restricted, journey and journey restricted licensees of Delaware or Virginia.
Maryland State Board of HVACR Contractors - Qualification Information Bulletin (PSI, updated 9/1/2024) · Maryland Department of Labor / PSI Services LLC · Other · verified September 15, 2026Exam fees: Master Contractor $150, Limited Contractor $150, Journeyman $150, each Master Restricted or Journeyman Restricted specialty $50; fees valid for one attempt and 90 days. Master HVACR Contractor exam: 100 questions, 70% to pass, 240 minutes; restricted exams 40-50 questions, 90-120 minutes; all open book (2012 International Mechanical Code, Modern Refrigeration and Air Conditioning, ACCA Manual J, 29 CFR 1926, ACCA Ductulator). Repeats the $300,000/$100,000 insurance requirement. Its journeyman eligibility text (apprentice license 3 years with 1,875 hours, or an approved apprenticeship, or 3 years of qualifying experience on Board approval) predates the current statutory 4-year/6,000-hour standard on the Board's requirements page.

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

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