LicensebyState

Mississippi to Iowa: master HVAC technician license reciprocity

No credit· Start overVerified September 15, 2026· 13 sources

Mississippi does not issue a statewide master HVAC technician license, so there is nothing to transfer. Here is Iowa'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 (all states): direct admission to the Iowa master exam

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

Iowa has no master-level HVAC reciprocity with any state. An applicant who was previously licensed as a master in the applicable discipline in another state or local jurisdiction is admitted to the Iowa master HVAC/refrigeration exam without having to hold an Iowa journeyperson license first (Iowa Code 105.18(2)(c); 481 IAC 429.6(3)(i)); the applicant files the $35 exam approval application, pays Kirkwood's exam fee ($95 as listed on the master page), passes with 75%, and then files the post-examination licensure application with a prorated three-year fee ($240 for a full term). An applicant who has established Iowa residency may instead apply for licensure by verification under Iowa Code 272C.12 and 481 IAC 430.4, but the board still requires proof of passing the applicable Iowa licensing examination and can issue only a temporary license until then. To contract independently the master (or the firm employing the master) must also obtain the Contractor license and DIAL contractor registration ($250 plus $150 for a full term, 30% discount when bought with the master license in one transaction), with $500,000 liability insurance, a $5,000 surety bond, and for out-of-state contractors a $25,000 bond under chapter 91C; the board's reciprocity form states there is no reciprocity for contractor licenses.

Contractor license fees, insurance and bond are listed as optional requirements because they apply only to a master who contracts independently. The Kirkwood exam fee is quoted from DIAL's master page ($95); the journey page lists $99. Timeline reflects up to two weeks for exam approval plus up to six weeks for post-exam application review, excluding exam scheduling.

At a glance

Trade exam
Required
Law / code exam
Not required
Out-of-state hours
Count toward eligibility
Typical processing
About 60 days

What you must already have

  • Previously licensed as a master in the applicable discipline in another state or local jurisdiction, or a licensed journeyperson with at least two years of journey-level experience in the discipline (Iowa Code 105.18(2)(c); 481 IAC 429.6(3)(i))
  • Your Mississippi license must be active and in good standing.
  • You must have no disciplinary action or unresolved complaints on your record.For licensure by verification: no revocation, surrender under investigation, unresolved discipline or pending complaint (272C.12(1)(e)-(g); 481 IAC 430.4(3)).
  • Licensure by verification requires established Iowa residency or a military spouse's permanent change of station to Iowa (272C.12(1)(b); 481 IAC 430.4(2)(d))

What you'll do to get licensed in Iowa

  1. 1Application fee. Pay the application fee ($35). Examination approval application fee, per discipline (481 IAC 428.1(4)).
  2. 2Trade exam. Pass the destination's trade exam. Iowa Master HVAC/Refrigeration examination administered through Kirkwood Community College; 75% to pass; also required of licensure-by-verification applicants under 481 IAC 430.4(2)(e).
  3. 3Exam fee. Pay the exam fee ($95). Kirkwood Community College examination fee, per attempt (as listed on DIAL's master license page).
  4. 4License fee. Pay the license or certificate fee ($240). Master license fee for a full three-year term (July 1, 2026 to June 30, 2029), prorated one-sixth per six-month period; same amount for a license by verification.
  5. 5Application fee. Pay the application fee ($25) (if applicable). Paper application fee if not filed through the online portal.
  6. 6Contractor license. Hold or obtain a contractor license ($400) (if applicable). PMSB Contractor license ($250) plus DIAL contractor registration ($150) for a full three-year term, prorated; required only to contract independently; 30% discount on license fees when bought with the master license in one transaction.
  7. 7Insurance. Carry the required insurance ($500,000) (if applicable). Public liability insurance of at least $500,000 for a contractor license (Iowa Code 105.19).
  8. 8Surety bond. Post a surety bond ($5,000) (if applicable). Surety bond of at least $5,000 for a contractor license; out-of-state contractors must also file a $25,000 bond under Iowa Code chapter 91C.
  9. 9Other. EPA Section 608 technician certification (Type I/II/III/Universal) to handle refrigerants; federal, does not expire. DIAL's pages do not list it as a state prerequisite..

Published fees on this path total $370, 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 · $95
  • Other

Business registration

If you plan to contract in your own name, budget for a business license or entity registration on top of the trade license.

  • Contractor license · $400 · if applicable

Liability insurance

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

  • Insurance · $500,000 · if applicable

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 Iowa licenses master HVAC technicians

Iowa master HVAC technician · “Master HVAC-Refrigeration”

Statewide license

Verified September 15, 2026· 7 sources

Issued by Iowa Plumbing and Mechanical Systems Board, Department of Inspections, Appeals, and Licensing (DIAL)

Iowa's highest person-held HVAC credential is the Master HVAC-Refrigeration license issued by the Plumbing and Mechanical Systems Board (DIAL); a Master Mechanical license, which adds sheet metal and hydronic work, is issued to anyone who passes both the master HVAC-refrigeration and master hydronic exams. A new master applicant must have previously been a licensed journeyperson in the discipline with at least two years of journey-level experience, or have been licensed as a master in the discipline in another state or local jurisdiction, and must pass the Iowa master exam (75%) through Kirkwood Community College. The separate Contractor license is a business credential: a sole proprietor or firm that contracts for HVAC work must hold or employ a master in each discipline, carry $500,000 liability insurance and a $5,000 surety bond (out-of-state contractors add a $25,000 chapter 91C bond), and register as a contractor with DIAL on the same application. Iowa has no HVAC reciprocity agreement with any state and states plainly that there is no reciprocity for contractor licenses. An out-of-state master may sit the Iowa master exam directly on the strength of the out-of-state license; Iowa residents may use licensure by verification but the board still requires the Iowa exam. Licenses run three years and require eight hours of continuing education per term.

Moving to IowaLeaving Iowa

Why Mississippi has nothing to transfer

Mississippi master HVAC technician

Licensed by cities and counties

Verified September 15, 2026· 11 sources

Mississippi does not issue a personal master HVAC license. The state-level HVAC credential is the Mississippi State Board of Contractors (MSBOC) contractor license: commercial 'Heat, Ventilation, A/C - HVAC' under the Mechanical classification (required on commercial jobs over $50,000; application and renewal $400, $300,000/$600,000 liability insurance, CPA-reviewed financial statement) or Residential HVAC (required for residential work over $10,000 in remodeling or $50,000 new construction; application $50, renewal $100). The license is issued to the business through a Certificate of Responsibility with a named qualifying party who passes the open-book PSI HVAC (or Residential HVAC) trade exam and the mandatory Mississippi Law and Business Management exam, so a master HVAC mechanic who only wants to work for an employer has nothing to transfer to at the state level; the personal master credential exists only in cities such as Southaven (Master Mechanical, $100, which itself requires an active MSBOC license, a $10,000 bond and liability insurance) and Gulfport (Mechanical/HVAC contractor license issued to the qualifying party, $100). MSBOC waives its HVAC trade exam, for $50 per exam, for qualifying parties who have held a license for at least one year with the Alabama Board of Heating, Air Conditioning and Refrigeration Contractors, the Alabama General Contractors Board, the Louisiana State Licensing Board for Contractors, the Ohio Construction Industry Licensing Board (HVAC or Refrigeration), the South Carolina Residential Builders Commission (Residential HVAC) or the Tennessee Board for Licensing Contractors, provided the license was obtained by that board's exam and there has been no disciplinary action in the period stated in each agreement; the Business and Law exam is never waived. EPA Section 608 certification is a separate federal requirement.

How local licensing works in Mississippi

State contractor license (business). MSBOC issues commercial and residential contractor licenses to companies through a Certificate of Responsibility. The commercial HVAC classification ('Heat, Ventilation, A/C - HVAC', with Ductwork, Refrigeration and Boiler specialties) requires the PSI open-book HVAC trade exam and the Mississippi Law and Business Management exam taken by the qualifying party (owner, officer or responsible managing employee), a $400 application fee ($400 annual renewal, $100 per additional classification), general liability insurance of $300,000 per occurrence / $600,000 aggregate naming MSBOC, and a CPA-reviewed financial statement showing net worth of $50,000 for a major classification or $20,000 for a specialty. Residential HVAC and Residential Mechanical (HVAC plus plumbing) licenses require the Residential HVAC (and Plumbing) exam and the Law and Business exam, a $50 application fee ($100 per additional classification, $100 renewal), proof of liability insurance with no minimum, three reference letters and documented experience in the classification.

MSBOC exam waivers for out-of-state qualifying parties. Reciprocity waives the trade exam only ($50 per exam waived, plus a $25 verification fee) after the origin board completes MSBOC's Reciprocity Verification Form; the applicant must have held the origin license for one year and passed that board's exam. HVAC waivers are available for the Alabama Heating and Air board (current license, Alabama exam), the Alabama General Contractors Board (HVAC can be waived; no discipline in the last year), Louisiana (HVAC can be waived but not mechanical or plumbing; the formal agreement ended but MSBOC continues to recognize Louisiana scores), Ohio CILB (HVAC and Refrigeration; no discipline in the last year), the South Carolina Residential Builders Commission (Residential HVAC; no discipline in three years) and Tennessee (all exams, the only state whose mechanical and plumbing exams are waived; no discipline in the last year). Arkansas, Florida, Georgia, North Carolina and the South Carolina Contractors Licensing Board agreements do not cover HVAC. Everyone takes the Mississippi Law and Business Management exam.

Southaven. Master Mechanical license ($100) for the license qualifier: application, photo ID, certificate of liability insurance, $10,000 surety bond in favor of the city, an active MSBOC contractor's license certificate and the company EIN. An out-of-state contractor without an MSBOC license must instead provide a letter of good standing from a municipality where its license is active and may not take residential projects or commercial projects over $50,000; the city defers to MSBOC on reciprocity.

Gulfport. Mechanical/HVAC contractor license ($100, waived with an MSBOC Certificate of Responsibility) issued in the name of the qualifying party: notarized application, current MSBOC license if held, five reference letters (waived with an MSBOC license), $100,000/$300,000 public liability insurance naming the city, home-jurisdiction privilege license and photo ID.

Out-of-state holders. A master HVAC licensee from another state who wants to contract in Mississippi applies to MSBOC as the qualifying party of a business, uses the exam waiver if the origin board is on the list, and then registers with each city; a master who only wants employment needs no state license and, in most cities, no personal card.

Moving to MississippiLeaving Mississippi

Common questions

Do I have to take the Iowa master HVAC technician exam if I'm licensed in Mississippi?
Yes. Iowa requires the trade exam on this path.
What does it cost to get a Iowa master HVAC technician license from Mississippi?
Published fees on this path total $370, not counting exam vendor fees or bonds.
Do my Mississippi work hours count in Iowa?
Yes. Documented out-of-state experience counts toward Iowa's eligibility requirements.
How long does the application take?
The board's published or typical processing time is about 60 days.
Does it work the other way, from Iowa to Mississippi?
Not necessarily. Reciprocity is directed. Going from Iowa to Mississippi, the mechanism is not applicable.

Sources

  1. 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.
  2. Iowa Code Chapter 105 - Plumbers, Mechanical Professionals, and Contractors (2026) · Iowa Code 105.2, 105.10, 105.17, 105.18, 105.19, 105.20, 105.21 · Iowa Legislature · Statute · verified September 15, 2026105.2 defines HVAC, refrigeration, mechanical professional, journeyperson, master and contractor. 105.17 preempts all local plumbing/mechanical licensing (local provisions void since July 1, 2009). 105.18 requires journeypersons to pass the state exam and complete a four-year U.S. DOL-registered apprenticeship, requires masters to pass the master exam and to have previously been a licensed journeyperson or master in the discipline, and requires contractors to hold or employ a master; a mechanical license covers HVAC, refrigeration, sheet metal and hydronic work, and HVAC-refrigeration licensees are exempt from the special electrician license for disconnect/reconnect of AC and refrigeration systems. 105.19 insurance and surety bond for contractors. 105.20 three-year licenses, 8 CE hours per term. 105.21 lets the board license nonresidents without examination only under a reciprocal arrangement with a state that grants the same privilege to Iowans. PDF read with a local text extractor.
  3. Iowa Code 272C.12 - Licensure of persons licensed in other jurisdictions (2026) · Iowa Code 272C.12 · Iowa Legislature · Statute · verified September 15, 2026Universal-recognition statute: a license shall be issued without examination to a person currently licensed in good standing by another state in the same occupation with a substantially similar scope of practice, who met that state's education/experience requirements, passed its exam if any, has no revocation, discipline or pending complaint, and pays the fees; for chapter 103 and 105 licenses the person must have established Iowa residency (or be a military spouse on PCS orders). Boards may still require an exam specific to Iowa law, in which case a three-month temporary license (renewable once) must be issued. PDF read with a local text extractor.
  4. DIAL - Plumbing & Mechanical Systems Contractor License · Iowa Department of Inspections, Appeals, and Licensing (DIAL), Plumbing and Mechanical Systems Board · Agency Page · verified September 15, 2026A contractor (sole proprietor or entity) providing plumbing, mechanical, HVAC, refrigeration, sheet metal or hydronic services on a contractual basis must hold a contractor license, employ or personally hold an active master license for each discipline, carry at least $500,000 public liability insurance and a $5,000 surety bond, and register as a contractor under Iowa Code chapter 91C on the same application; out-of-state contractors must also file a $25,000 surety bond. Initial combined fee $91.75 to $425 depending on timing; renewal $250 license plus $150 registration.
  5. DIAL - Plumbing & Mechanical Systems Examination · Iowa Department of Inspections, Appeals, and Licensing (DIAL), Plumbing and Mechanical Systems Board · Agency Page · verified September 15, 2026The board accepts exam applications for Master and Journeyperson Plumbing, Hydronics, HVAC/Refrigeration, Mechanical, and Journeyperson Sheet Metal. $35 per trade examination application; exam fee paid to Kirkwood Community College per attempt; approval valid one year; a license is not issued automatically after passing. Master candidates may qualify if previously licensed as a master in the applicable discipline in another state or local jurisdiction.
  6. DIAL - Plumbing & Mechanical Systems License Period & Fees · Iowa Department of Inspections, Appeals, and Licensing (DIAL), Plumbing and Mechanical Systems Board · Agency Page · verified September 15, 2026Licensing period July 1, 2026 to June 30, 2029. Full three-year fees: journey $180, master $240, apprentice/inactive/specialty $50, contractor $250 plus $150 contractor registration ($400 together); prorated by one-sixth per six-month period for licenses issued mid-cycle. Exam approval application $35, paper application $25, written verification $20. Late renewal $60 after August 1 and $100 after September 1.
  7. DIAL - Master Level License (plumbing, mechanical, HVAC, refrigeration, sheet metal, hydronic) · Iowa Department of Inspections, Appeals, and Licensing (DIAL), Plumbing and Mechanical Systems Board · Agency Page · verified September 15, 2026Master applicants must hold either a master license from another jurisdiction or a journeyperson license with at least two years of journey-level experience, and pass the Iowa master exam for the discipline. Exam approval application $35 per discipline; Kirkwood exam fee listed as $95. Repeats that the board's only reciprocity agreement is the South Dakota plumbing agreement. The $95 figure differs from the $99 on the journey page; both are quoted as published.
  8. DIAL - Plumbing & Mechanical Systems Licensure (program home) · Iowa Department of Inspections, Appeals, and Licensing (DIAL), Plumbing and Mechanical Systems Board · Agency Page · verified September 15, 2026Lists the license types the board issues (apprentice, journey, master, contractor, service technician HVAC specialty, hearth, medical gas) and states that each license has its own education, testing and fee requirements and that at least eight classroom hours of board-approved continuing education are required each three-year term.
  9. DIAL - Post-Examination Licensure · Iowa Department of Inspections, Appeals, and Licensing (DIAL), Plumbing and Mechanical Systems Board · Agency Page · verified September 15, 2026After passing the exam the applicant files a post-examination licensure application (online, or paper with a $25 fee); review can take up to six weeks. For a journeyperson license the application is not processed until the U.S. DOL Office of Apprenticeship certificate of completion has been issued, unless the applicant holds a master-level license from another jurisdiction. A 30% discount applies when multiple discipline licenses are bought in one transaction.
  10. Iowa Administrative Code 481 Chapter 428 - Plumbing and Mechanical Systems Board Licensure Fees · 481 IAC 428.1 · Iowa Department of Inspections, Appeals, and Licensing · Admin Rule · verified September 15, 2026Three-year fees: apprentice $50, journey $180, master $240, contractor $250, inactive $50, special restricted $50; identical fees for reciprocal licenses and licenses obtained by verification under chapter 430; prorated one-sixth per six-month period; exam application $35; paper application $25; written verification $20; combined licenses bought in one transaction discounted 30%; $50 fee to combine an HVAC-refrigeration or hydronic license into a mechanical license. PDF read with a local text extractor.
  11. Iowa Administrative Code 481 Chapter 429 - Plumbing and Mechanical Systems Board Application, Licensure, and Examination · 481 IAC 429.2, 429.6 · Iowa Department of Inspections, Appeals, and Licensing · Admin Rule · verified September 15, 2026429.2(3): a master applicant previously licensed as a journeyperson must show at least two years of journeyperson experience in the discipline. 429.6: exams are written and proctored by the board's vendor, 75% passes, applicants who do not pass within one year of applying must reapply, a passing score expires if the licensure application is not filed within two years, a master exam applicant must have previously been licensed as a master in the discipline or as a journeyperson with two years' experience, and journeyperson candidates may sit up to 12 months before completing the 48 months of apprentice credit. PDF read with a local text extractor.
  12. Iowa Administrative Code 481 Chapter 430 - Plumbing and Mechanical Systems Board Alternative Licensure Pathways · 481 IAC 430.2 to 430.5 · Iowa Department of Inspections, Appeals, and Licensing · Admin Rule · verified September 15, 2026430.3: licensure by reciprocity is available only to nonresidents holding a license from a jurisdiction with which the board has a reciprocity agreement. 430.4: licensure by verification under Iowa Code 272C.12 requires a verification form sent directly by the transferring jurisdiction, proof of Iowa residency (or military PCS), proof of passing the applicable Iowa licensing examination, a complete criminal record and any disciplinary documents; applicants who meet everything except the Iowa exam may receive a temporary license; revoked or surrendered licenses are ineligible. 430.5: an Iowa resident relocating from a jurisdiction that did not license the trade may substitute three or more years of full-time work in the preceding four years for the apprenticeship if the board finds it substantially similar, and must still pass the exam. PDF read with a local text extractor.
  13. Iowa Plumbing and Mechanical Systems Board - Application for License by Reciprocity (Reciprocity App 03/2020) · Iowa Plumbing and Mechanical Systems Board · Form · verified September 15, 2026States that the board only has a reciprocity agreement with the South Dakota State Plumbing Commission, covering only individuals licensed on the basis of written examination, and that as of May 2016 reciprocity is offered only in the plumbing trade; the form's trade field is fixed to 'Plumbing'. Also states there is no reciprocity for contractor licenses. PDF read with a local text extractor.

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

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