How to Get a Plumbing License in Alabama (2026 Requirements)

Alabama licenses plumbing at the state level through a single agency, the Alabama Plumbers and Gas Fitters Examining Board in Homewood, and the structure is cleaner than most states. There are three levels, apprentice, journeyman, master, and a separate parallel ladder for gas fitting. If you want to run a plumbing company in Alabama, one specific person inside that company has to hold a Master Plumber certificate and be registered with the Board as the company's principal master plumber.

Two things changed for 2026, and most of the guides ranking for this search have not caught up to either one. Continuing education became a hard prerequisite to renewal, and as of January 1, 2026 every master-level applicant has to pass a business law exam on top of the trade exam. This guide walks the whole ladder using the Board's own rules, Chapter 720-X of the Alabama Administrative Code and Title 34, Chapter 37 of the Code of Alabama, and then explains the part that trips up companies rather than individuals: the principal master requirement.

Who Regulates Plumbing in Alabama

The Alabama Plumbers and Gas Fitters Examining Board (APGFEB) certifies individuals and registers businesses statewide. Its authority comes from Code of Alabama 1975, Title 34, Chapter 37, and its operating rules are Chapter 720-X of the Alabama Administrative Code.

A few structural points worth getting straight before anything else:

• Plumbing and gas fitting are separate trades with separate certificates. You can be a Journeyman Plumber, a Journeyman Gas Fitter, a Master Plumber, a Master Gas Fitter, or any combination.
• Individuals get certificates. Companies get registrations. Those are two different things and both are required before a company performs work.
• The Board also issues an endorsement, Medical Gas Piping Fitter, that layers on top of an existing certificate rather than standing alone.

The Alabama Plumbing Ladder

Apprentice Plumber / Apprentice Gas Fitter

The entry credential. There is no written exam for apprentice registration. Per rule 720-X-4-.01(2)(a), you submit the apprentice registration form, submit the executed "Declaration of U.S. Citizenship or Lawful Presence of an Alien," and pay the fee.

An apprentice works directly under the supervision of a journeyman or master and must carry a current annual certificate that is available for inspection on request.

Registration is renewed annually.

Journeyman Plumber

To sit for the Journeyman Plumber exam under rule 720-X-4-.01(2)(b), you need verifiable proof of two years of current work experience as a registered apprentice plumber, or completion of a Board-approved apprentice training program.

There is a third door that almost nobody writes about. The Board will consider two years of apprentice-level experience "gained through other means", but only if you file a Board Appearance Request form with verifiable documentation attached. That request goes on the agenda for the next scheduled Board meeting, and you make your case in person. If your experience does not fit neatly into the registered-apprentice box, this is the path, and it is a scheduled hearing rather than a paperwork submission.

Passing score is 70%.

Journeyman Gas Fitter

Same structure, same two-year current-experience threshold, but the experience must be as a registered apprentice gas fitter, and the exam is the gas fitting exam.

Master Plumber, And the Requirement Almost Every Competing Guide Gets Wrong

Here is the single biggest factual error in this vertical. Multiple page-one results tell readers that a Master Plumber in Alabama must work two years as a journeyman and then document two additional years of journey-level experience, four years past journeyman.

That is not what the rule says. Rule 720-X-4-.01(2)(d) requires "verifiable proof of one (1) year of current work experience as a journeyman plumber." The Board's own exam page states it in plain language: "You must have 1 year of CURRENT work experience to qualify for a master examination." The Board's "How Do I Become Licensed?" page says the same thing a third way: "To become eligible to take the Master Plumber Exam, an individual must be certified as a Journeyman Plumber for a minimum of one year."

One year. Not two, and not four. If you have been holding off on the master exam because a licensing blog told you that you were years away, check your own certification date.

New for 2026: master-level applicants must now pass two exams, the trade exam and a business law exam. The Board's exam page states it in capital letters: "EFFECTIVE JANUARY 1, 2026, MASTER LEVEL EXAMINATION APPLICANTS WILL NOW BE REQUIRED TO ALSO PASS AN ADDITIONAL BUSINESS LAW EXAM TO OBTAIN MASTER CERTIFICATION." Rule 720-X-4-.01(2)(d) now lists both a passing score on the written examination and a passing score on the business law examination as separate line items.

Practical consequence: the Board has posted a separate master exam application, and it has instructed applicants not to submit the old journeyman-era application for master-level exams. Using the wrong form is now a rejection.

Master Gas Fitter

Identical structure, one year of current work experience as a journeyman gas fitter, the trade exam, and, as of January 1, 2026, the business law exam.

Medical Gas Piping Fitter

This is an endorsement, not a standalone license. To get it you must already hold a Board certification at any level in plumbing or gas fitting, and separately hold a current third-party certification as a Medical Gas Installer/Brazer from the National Inspection Testing and Certification Corporation (NITC) or an equivalent Board-approved entity. The Board's public page also references ASSE 6010 Installer certification for this endorsement.

Supervision rules follow the underlying certificate: an apprentice holding med-gas certification must still be under the direct supervision of a master or journeyman who also holds a current med-gas certificate.

The 90-Day Certification Cliff

This one costs people an entire exam. Effective September 1, 2015, once you pass an examination you have ninety calendar days to pay all prescribed fees and obtain your certification. Miss the window and you have to re-test.

There is a second timing trap in the other direction: if you pass a Journeyman or Master Plumber exam and want to keep performing gas fitting work, you are required to hold at least an Apprentice certification in gas fitting. The reverse is also true, pass a gas fitter exam and want to keep plumbing, and you need at least an apprentice plumbing certification. Two ladders, and moving up one does not carry you across to the other.

Exam Content Basis

Effective January 1, 2023, applicants are tested on the 2021 International Plumbing Code or the 2021 International Fuel Gas Code, depending on the trade. The Board also lists the Code of Alabama Title 34, Chapter 37 and the Board's Administrative Rules (Chapter 720-X) as reference material for all exams.

Note the code cycle: Alabama's plumbing exams are running the 2021 IPC and 2021 IFGC in 2026. Guides that reference the 2018 codes are stale.

Fees, Verified Against Rule 720-X-4-.01

The fee schedule below is taken directly from Board rule 720-X-4-.01(3), revision dated October 13, 2025. Board fees are set by the Board and change. Verify current amounts with the Alabama Plumbers and Gas Fitters Examining Board before you send money.

Apprentice

• Initial registration: $35.00
• Annual renewal: $35.00
• Late annual registration penalty: $35.00

Journeyman level (plumber or gas fitter)

• Non-refundable examination fee: $110.00
• Initial application processing fee: $50.00
• Initial certificate fee: $75.00
• Annual certificate renewal: $75.00
• Inactive fee: $0.00
• Late annual renewal penalty: $75.00

Master level (plumber or gas fitter)

• Non-refundable written exam fee: $160.00
• Non-refundable business law exam fee: $100.00
• Initial application processing fee: $50.00
• Initial certificate fee: $175.00
• Annual certificate renewal: $175.00
• Inactive fee: $0.00
• Late annual renewal penalty: $175.00

Medical Gas Pipe Fitter

• Renewal fee: $25.00

Business registration

• Initial registration: $25.00
• Annual renewal: $25.00
• Late renewal penalty: $25.00

Miscellaneous

• Records request: $15.00 plus $0.25 per page
• License verification: $15.00
• Application for alternative assessment: $15.00

Two observations. First, the master written exam and business law exam are billed separately, the 2026 change adds $100 to the cost of getting certified, not zero. Second, business registration is $25 a year. The company-side cost in Alabama is trivial; the constraint is entirely about finding and keeping the person who can be the principal master.

Fines: rule 720-X-4-.01(4) sets a minimum fine of $500.00 for all violations not related to gas work and a minimum fine of $1,000.00 for all violations related to gas work, with maximum limits determined by state law.

Renewal, Late Penalties, and Continuing Education

All certificates and registrations expire December 31. Renewal season runs October 1 through December 31.

Rule 720-X-9-.01 is unusually literal about the deadline: fees must be received in the Board office by close of business on December 31, or online by 11:59 p.m. that night. Anything after that is a late renewal, and the late penalty is equal to the full renewal rate for that certificate. A master plumber who renews on January 2 pays $175 plus another $175. Under Ala. Code § 34-37-9, unpaid certificate and registration fees from previous years also come due at the time you pay the current year's fees and penalties.

Continuing Education, The 2025 Change That Bites in 2026

Beginning January 1, 2025, continuing education became mandatory for all journeyman and master certificate holders. The Board is blunt on its homepage: "You MUST complete the continuing education requirement prior to being able to renew."

The requirements, from rule 720-X-21-.02:

• Four hours annually, regardless of how many certifications you hold.
• If you hold two certifications, the four hours split. A contractor holding both Master Plumber and Master Gas Fitter must obtain two hours of plumbing CE and two hours of gas fitting CE, not four hours of whichever is convenient. The rule gives this as a worked example. No competing guide we reviewed reports the split.
• No carryover. Rule 720-X-21-.02(9): hours earned in excess of the requirement "may NOT be use[d] toward CE credit for the following year." (This is the opposite of the rule on the HVAC side of Alabama, where the statute expressly permits carrying four hours forward, see the Alabama HVAC license guide.)
• First year is exempt. CE is not required for an individual acquiring and renewing their initial certification during the current calendar year.
• One CE hour equals at least 50 minutes, awarded in one-hour increments not to exceed four hours, and courses may not be repeated within the earning period for credit.
• Inactive status suspends CE, but an inactive contractor returning to active status must complete all CE requirements first.

The deadline mechanics matter. Under the standing rule, failure to complete CE before November 1 prevents renewal until proof of compliance is submitted. For the 2026 renewal cycle only, the Board temporarily amended Chapter 720-X-21 to extend the CE deadline through December 14. Miss it and you land on a CE deficiency plan plus a deficiency fee, and you still have to finish the hours and renew before December 31 to avoid the late renewal penalty on top.

If you are reading this and your 2026 certificate is not renewed, the Board's current homepage notice applies: renewals are late, a penalty attaches, and because the CE deadline has passed you must submit a deficiency plan along with completing your CE in order to renew at all.

The Company Side: Registration and the Principal Master

This is the part that separates individual licensing from operating a plumbing business in Alabama, and it is where most out-of-state companies get stuck.

Every company must register with the Board before bidding on or performing work in Alabama. Not before starting work, before bidding. Journeyman and apprentice employees of the registered company must also individually be certified or registered.

Every registered company must have a principal master designee. The Board defines the principal master as the individual responsible for the contracting, superintending, installation, maintenance, or repair of plumbing or gas fitting systems for a legal entity, "who is actively and continuously connected with the conduct of the business, and is responsible to the board for those responsibilities."

Rule 720-X-12-.02 converts that phrase into three hard tests. To be registered as principal master plumber for a legal entity, an individual must:

1. be duly registered and certified by the State of Alabama as a master plumber;
2. be an active employee of the legal entity and not an independent contractor; and
3. provide verifiable documentation to substantiate the above as requested by the board or board staff.

And then the sentence that ends the conversation for anyone thinking about spreading a certificate across multiple companies:

"No individual shall be registered as the principal master plumber for more than one legal entity regulated by the board.", Rule 720-X-12-.02(2)

Rule 720-X-13-.02 imposes the identical one-entity limit on the principal master gas fitter.

Read those together and Alabama's position is unambiguous. The principal master must be an actual employee of the company, not a contractor, not a consultant, not a name on a form, and can hold that role for exactly one company at a time. That is a structural rule, not a paperwork preference, and it is why arrangements built around detached license-holders do not survive contact with this Board. We cover the broader legal picture in Is It Legal to Rent a Contractor License?.

What Happens When the Principal Master Leaves

Alabama has the most operationally severe qualifier-departure rule we have documented anywhere, and it is worth reading before you ever need it. Rule 720-X-12-.03 governs.

On separation by termination, layoff, or resignation:

• Both the principal master and the legal entity must notify the Board within five days of the separation, each on the prescribed form.
• The entity must immediately cease entering all contracts, both verbal and written, for plumbing or gas fitting work.
• Every certificate holder employed by the entity who was operating under that principal's certification must immediately cease all installation, maintenance, servicing, and repair of plumbing or gas systems, until a new principal master has applied to and been approved by the Board.
• The departing principal may not act as principal master for himself or any other employer until he has been formally removed from the former employer and approved by the Board for the new one.

There is no grace period on the separation track. Work stops the day the principal walks, and it stays stopped through the Board's approval cycle for the replacement.

On death or incapacity, the rule is different and more forgiving:

• The entity must give the Board written notice within 45 days, with documentation such as a death certificate or a physician's attestation of incapacitation.
• Upon timely and complete notice, the entity may request a limited waiver so it and its certified employees can keep operating temporarily. A request filed later than 45 days may be denied after a show cause hearing.
• Any waiver granted expires on the 90th day following the qualifying event. The entity may continue entering new contracts and performing work while the waiver is active, but on expiration must immediately cease unless a new principal master has been approved.

The asymmetry is the point. Alabama gives a company a 90-day runway when the principal master dies, and zero runway when the principal master quits. Building a company where one person's resignation letter stops all revenue the same afternoon is a real and specific risk in this state. If your Alabama entity has exactly one certified master and no bench, that is worth planning around now rather than in the five days you would have to react, see Building a Contractor Qualifier Contingency Plan.

How Much Does It Cost to Get Licensed in Alabama?

For the individual, the Board fees above are the whole picture on the certification side: a master plumber going from journeyman to certified master pays the $160 written exam, the $100 business law exam, the $50 processing fee, and the $175 initial certificate, plus whatever the business registration costs at $25.

For a company, the honest answer is that Alabama's state fees are among the cheapest in the country and are not the real cost. The real cost is the qualifier. What a company spends to have a properly certified principal master in place depends on the trade classification, whether you already employ a certified master, how many entities and states you are operating across, the exposure the role carries, and how quickly you need to be operational. Those variables are why we do not publish a single number for it, a figure that is right for one company is wrong for the next. If you want a real answer for your situation, request a consultation and we will scope it against your actual footprint.

One thing that is not variable: when we place a qualifying agent, that person is placed as a full-time W-2 employee of the client company. In Alabama specifically, that is not a preference, rule 720-X-12-.02(1)(b) requires the principal master to be an active employee and not an independent contractor, and there is no compliant way to structure it otherwise.

Frequently Asked Questions

Do I need a state license to do plumbing work in Alabama? Yes. Plumbing is certified at the state level by the Alabama Plumbers and Gas Fitters Examining Board, and any company performing plumbing or gas fitting work must be registered with the Board before it bids on or performs work.

How long does it take to become a Master Plumber in Alabama? The minimum path is two years of current work experience as a registered apprentice to sit for the journeyman exam, then one year of current work experience as a certified journeyman to sit for the master exam, roughly three years of qualifying experience, plus the exam and certification steps at each stage.

How much continuing education do I need? Four hours a year for journeyman and master certificate holders. If you hold two certifications, it splits two and two across the trades. Hours do not carry over, and CE must be complete before the Board will let you renew.

Can one person be the principal master for two companies? No. Board rule 720-X-12-.02(2) states that no individual shall be registered as the principal master plumber for more than one legal entity regulated by the Board, and rule 720-X-13-.02(2) says the same for gas fitting.

What happens to my company if our master plumber quits? Both you and the departing principal must notify the Board within five days, and the company must immediately stop entering contracts and stop all plumbing and gas work until a replacement principal master is approved by the Board. There is no waiver on the resignation track, the 90-day waiver in rule 720-X-12-.03(2) applies only to death or incapacity.

Is the business law exam new? Yes. Effective January 1, 2026, master-level applicants must pass a business law exam in addition to the trade exam, and the Board has issued a separate master exam application for it.

Where to Go From Here

If you already hold an Alabama master certificate, the practical next steps are the business registration and getting yourself properly registered as the principal master for exactly one entity.

If you are a company, in-state or expanding into Alabama, and you do not have a certified Alabama master plumber on payroll, that is the gate, and the state fees are not the hard part. Read What Is a Qualifying Agent? for the structure, look at the trade-level view in the plumbing contractor qualifying agent guide, and see the rest of Alabama's licensing landscape in the Alabama contractor licensing state guide and the Alabama electrician license guide.

When you are ready to put a qualifier in place, Hire a Qualifying Agent. If you are the master plumber and want to understand what the role is worth and what it obligates you to, start at Become a Qualifying Agent.

Fees, deadlines, code cycles, and exam requirements described here are set by the Alabama Plumbers and Gas Fitters Examining Board and are subject to change. Verify current requirements directly with the Board before applying. This guide reflects Board rules and published guidance as of August 2026.