Kansas to Delaware: master plumber license reciprocity
Kansas does not issue a statewide master plumber license, so there is nothing to transfer. Here is Delaware'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.
Master plumber license by reciprocity (Board review of origin standards)
Your out-of-state credentials give no advantage. You meet the destination's requirements from scratch.
A plumber who holds a current master-level license in good standing in another state, the District of Columbia or a U.S. territory applies by reciprocity in DELPROS rather than by examination. 24 Del. C. § 1810(a) requires the Board to grant the Delaware Master Plumber license, without a Delaware trade or law exam, when the origin jurisdiction's licensure standards are substantially similar to Delaware's and the applicant submits the good-conduct evidence in § 1808(a)(3)-(5) plus the fee. If the standards are not substantially similar, § 1810(b) still keeps the applicant on the reciprocity path (no Delaware exam) but requires proof of at least seven years of practice after licensure. 24 DE Admin. Every applicant pays the $173 Plumber application fee in DELPROS, has a Certificate of Good Standing / licensure verification sent directly from each jurisdiction where they hold or have held a license, and documents experience with supervising-plumber affidavits (or W-2s / employer affidavits at the Board's discretion) when the seven-year practice showing is required. Applications are not complete until the form, supporting documents and fees are in. Holders of only a municipal license are not described in the statute as qualifying for § 1810 (which speaks of a state, D.C. or territory); those applicants should plan on the examination path: journeyman certificate plus 2 years under a master, or 7 years plus bypass tests, then the ProV master plumber exam ($100 per the 2022 CIB, 70%, three attempts, then a one-year wait). A business that has just lost its only master may obtain a 100-day temporary plumber license ($40) for an owner or employee who is applying and will sit for the next exam.
Mechanism is Endorsement because the Board compares origin statutes case by case and has no retrieved plumber partner list; the trade exam is still waived on this path (24 Del. C. § 1810), which is why examTradeRequired is false. Code 1800 § 2.0 (HVACR is 70% in § 3.1.1; the 2022 ProV CIB states plumbing exams also require 70%). No individual-license bond or insurance amount appears in subchapter II or regulation 2.0. Typical processing time is not published; complete applications are reviewed at Board meetings.
At a glance
- Trade exam
- Waived
- Law / code exam
- Not required
- Out-of-state hours
- Count toward eligibility
What you must already have
- Your Kansas license must be active and in good standing.
- You must have no disciplinary action or unresolved complaints on your record.
- You must have held your Kansas license for at least 7 years.Required only if the Board finds the origin jurisdiction's standards not substantially similar: at least 7 years of practice after licensure (24 Del. C. § 1810(b)).
- Origin jurisdiction's plumber licensure law and regulations submitted so the Board can decide whether standards are equivalent (24 DE Admin. Code 1800 § 2.3)
What you'll do to get licensed in Delaware
- 1Application fee. Pay the application fee ($173). Plumber application fee (examination or reciprocity), non-refundable, paid in DELPROS.
- 2Other. Certificate of Good Standing / licensure verification sent directly to the Board from each state or jurisdiction where the applicant currently holds or has ever held a plumber license (24 DE Admin. Code 1800 §§ 1.2, 2.1.3).
- 3Other. Copy of the origin state's plumber licensure laws and regulations for the Board's substantial-similarity / equivalency review (24 DE Admin. Code 1800 § 2.3).
- 4Other. Verification of experience / practice: supervising licensed plumber affidavit on the Board form, or W-2s or employer/officer affidavits at the Board's discretion; required to show 7 years of post-licensure practice when origin standards are not substantially similar (24 Del. C. § 1810(b); 24 DE Admin. Code 1800 § 2.1.2).
- 5Trade exam. Pass the destination's trade exam (if applicable). Not required on the § 1810 reciprocity path. Examination-path applicants (no qualifying out-of-state license) must obtain Board approval then pass the ProV master plumber exam. 2022 Candidate Information Bulletin: $100, computer-based, open book, 70% to pass, retake after 7 days, three attempts per application; after three failures, 24 DE Admin. Code 1800 § 2.2 requires waiting one year from the last exam before reapplying. Affiliate exam prep applies only if the applicant is actually sitting the exam..
- 6Exam fee. Pay the exam fee ($100) (if applicable). ProV exam fee from the 2022 Candidate Information Bulletin; paid to the testing vendor, not combined with the $173 DPR application fee (24 Del. C. § 1811). Not charged on the reciprocity path..
Published fees on this path total $173, 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 · if applicable
How Delaware licenses master plumbers
Delaware master plumber · “Master Plumber”
Statewide license
Delaware issues a person-held Master Plumber license through the Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners in the Division of Professional Regulation. 24 Del. C. § 1807 requires that license (or a statutory exemption) to provide plumbing services or to use the titles licensed plumber / master plumber. Employees, apprentices and journeymen work under a master's supervision without their own Board license. A new master needs a journeyman's certificate from a federally-standard apprenticeship plus two years under a master plumber (or similar-level licensee in another state), or seven years under such supervision plus the Delaware vocational-technical apprenticeship equivalency tests, then Board approval and the ProV-administered master plumber exam; the application fee is $173. Out-of-state masters apply by reciprocity under 24 Del. C. § 1810 without a Delaware exam: the Board shall grant the license if the origin state's standards are substantially similar, and otherwise requires at least seven years of practice after licensure. 24 DE Admin. Code 1800 § 2.3 requires every reciprocity applicant to submit the origin state's licensure laws and regulations so the Board can make that comparison. Licenses renew biennially; from the 2026 renewal, plumbing licensees complete 5 hours of continuing education (3 code, 1 safety, 1 cross-connections/backflow) by October 31 of even-numbered years.
Why Kansas has nothing to transfer
Kansas master plumber
Licensed by cities and counties
Kansas issues no statewide master plumber or plumbing contractor license; the master credential exists only in county and city programs operating under K.S.A. 12-1508 and 12-1509. State law requires a master certificate to rest on a journeyman certificate held at least two years or four years of field experience, plus a 75% score on an ICC, IAPMO or Prometric standard master plumber exam, and makes a certificate earned that way valid proof of competency in every Kansas jurisdiction that licenses plumbers without additional examination. Sedgwick County/Wichita (MABCD) issues master plumber certificates ($35) on ICC K9F/557 Master Plumber with Gas or the IAPMO master exam; Johnson County uses the same ICC 557/KGF exam to qualify the individual behind a Class DP Plumbing Contractor license ($100 application plus $225 per license type); Topeka licenses trade contractors through a designated master with six hours of annual continuing education. None of the jurisdictions reviewed has a reciprocity agreement with another state, and MABCD states it 'does not reciprocate with state testing', so an out-of-state master plumber license transfers nothing except a qualifying ICC, IAPMO or Prometric score the applicant may already hold and documented experience. Lawrence and Kansas City, Kansas also license master plumbers, but their pages could not be retrieved in this pass.
How local licensing works in Kansas
How local licensing works. There is no state plumbing board. K.S.A. 12-1508 designates the ICC, IAPMO and Prometric standard exams for 'plumbing contractors and master and journeyman plumbers', and K.S.A. 12-1509 lets a county or city issue a master certificate of competency only after verifying that the applicant has held a valid journeyman certificate for at least two years or has at least four years of field experience, and has scored 75% on the standard master exam. That certificate 'shall be valid proof of competency for licensure, without additional examination, in any county or city of the state which requires licensure of plumbers'; each jurisdiction issues its own certificate for a uniform fee and requires 12 hours of continuing education biennially or six annually, half in code. Contracting (pulling permits and running a plumbing business) is licensed separately by each jurisdiction and generally requires a master-level qualifying individual plus insurance. The act is silent on out-of-state licenses; AG Op. 1999-42 says cities may not add licensure requirements beyond the act.
Sedgwick County and Wichita (MABCD). Plumbing master certificate ($35, Form 19A): must hold a plumbing journeyman certificate plus two years of field experience as a journeyman, or have four years of field experience, and score 75% or better on ICC K9F Master Plumber with Gas, ICC 557 Master Plumber with Gas or the IAPMO master exam, documented by an official passing letter. Certificates are good for two years and renew for $35 with three trade-specific and three general CEUs each year. MABCD 'does not reciprocate with state testing'; approved testing bodies are Block, Experior, Prometric, ICC and IAPMO, and MABCD no longer sponsors its own exams. Plumbing contractors are licensed separately by MABCD Contractor Licensing. Out-of-state treatment: an out-of-state master license is not accepted in lieu of the exam; a qualifying ICC 557-series or IAPMO master score plus documented experience is.
Johnson County. Does not license individuals. The master-level credential is the qualifying individual (QI) of a Class DP Plumbing Contractor license, who must present a verifiable passing score on ICC Master Plumbing with Gas (557/KGF); the county 'may be able to recognize ICC National exams if it can be verified to have a 75% or higher score.' The company pays a $100 application fee plus $225 per license type ($325 for one DP license), renews annually for $225 ($75 late fee from Feb. 1), and files general liability insurance, workers' compensation or a notarized waiver, and a Kansas Certificate of Good Standing if applicable; new applications are filed in person or by mail. A trade contractor's designated master must complete six hours of continuing education a year (three in the trade); licenses renew by December 14, fees are not prorated, and applications include the ICC passing certification or approved alternative education plus insurance and workers' compensation certificates (or a notarized exemption affidavit). V art. The applicant should obtain an official ICC (557/K9F/KGF series) or IAPMO master plumber passing letter (retesting through Pearson VUE or IAPMO if the origin exam was a state-specific test), document two years as a journeyman or four years of field experience, and apply to the first Kansas jurisdiction where they will work; under K.S.A. 12-1509(b) that certificate then supports licensure in every other Kansas county or city without another exam. A contractor license, insurance and, in Johnson County, a company-level Class DP license are separate requirements.
Common questions
- Do I have to take the Delaware master plumber exam if I'm licensed in Kansas?
- No. The trade exam is waived on this path.
- How long do I need to have held my Kansas license?
- At least 7 years before applying.
- What does it cost to get a Delaware master plumber license from Kansas?
- Published fees on this path total $173, not counting exam vendor fees or bonds.
- Do my Kansas work hours count in Delaware?
- Yes. Documented out-of-state experience counts toward Delaware's eligibility requirements.
- Does it work the other way, from Delaware to Kansas?
- Not necessarily. Reciprocity is directed. Going from Delaware to Kansas, the mechanism is not applicable.
Sources
- 24 DE Admin. Code 1800 - Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners (regulations) · 24 DE Admin. Code 1800 §§ 2.0, 5.0 · Delaware Registrar of Regulations · Admin Rule · verified September 16, 2026
- 24 Del. C. ch. 18, subch. II - License: Plumbing · 24 Del. C. §§ 1807, 1808, 1809, 1810, 1811, 1812 · Delaware General Assembly · Statute · verified September 16, 2026
- Delaware Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners - Home · 24 Del. C. ch. 18 · Delaware Division of Professional Regulation · Agency Page · verified September 16, 2026
- Delaware DPR - Plumbing and HVACR Examinations (Master exam / DELPROS) · Delaware Division of Professional Regulation · Agency Page · verified September 16, 2026
- Delaware DPR - Plumbing and HVACR Fee Schedule · Delaware Division of Professional Regulation · Agency Page · verified September 16, 2026
- Delaware DPR - Plumbing Licensure (examination and reciprocity) · 24 Del. C. §§ 1808, 1810 · Delaware Division of Professional Regulation · Agency Page · verified September 16, 2026
- Delaware DPR - Temporary Plumber or HVACR License (loss of sole license holder) · 24 Del. C. § 1831 · Delaware Division of Professional Regulation · Agency Page · verified September 16, 2026
- Delaware Division of Professional Regulation - Candidate Information Bulletin (ProV, 2022.03.09) · Delaware Division of Professional Regulation / Prov, Inc. · Other · verified September 16, 2026
Verified dates are when a person last opened each source and confirmed the facts above. Cite the board, not us.