How do I check if an Oklahoma alarm company is licensed?

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Every alarm company working in Oklahoma has to hold a state license from the Department of Labor. Here is where the official list lives, how to search it, what the license number on the truck is supposed to look like, and what happens to a company that does the work without one.

The short answer

Download the Oklahoma Department of Labor's active alarm company license list and search it for the company name. There is no type-in web form yet — the state publishes the list as a PDF and refreshes it monthly. If you would rather not download anything, call ODOL Licensing at (405) 521-2150 and ask them to check the name for you.

Who licenses alarm companies in Oklahoma

Alarm licensing in Oklahoma is not a city function and not a fire marshal function. It sits with the Oklahoma Department of Labor's Licensing Division, advised by the Alarm, Locksmith and Fire Sprinkler Advisory Committee. One program covers burglar alarm firms, fire alarm firms, locksmiths and fire sprinkler contractors.

Source: Oklahoma Department of Labor, Alarm, Locksmith and Fire Sprinkler licensing program

The law is the Alarm, Locksmith and Fire Sprinkler Industry Act, 59 O.S. § 1800.1 and following, with the working rules in Oklahoma Administrative Code Title 380, Chapter 75. Section 1800.6 leaves no room to argue: no person shall engage in an alarm, locksmith or fire sprinkler industry business in this state without first having obtained a license.

Source: Oklahoma Department of Labor, Alarm, Locksmith and Fire Sprinkler Industry Act (59 O.S. § 1800.1 et seq.) and Oklahoma Administrative Code Title 380, Chapter 75

So a company selling, installing or servicing an alarm at your house or your business needs a state license, and the technician standing in your hallway needs a separate one. Two different licenses, two different lists, and you can check both.

Source: Oklahoma Department of Labor, Alarm, Locksmith and Fire Sprinkler Industry Act (59 O.S. § 1800.1 et seq.) and Oklahoma Administrative Code Title 380, Chapter 75; Oklahoma Department of Labor, Verify licenses, permits and registrations

The AC prefix does not mean access control

Several third-party pages tell Oklahoma consumers that a license beginning with AC means access control. At the company level that is wrong, and the state's own list proves it.

Source: Oklahoma Department of Labor, Active alarm company licenses (list of record, June 30, 2026)

Every one of the 722 active company licenses on the June 30, 2026 list carries an AC prefix. Burglar alarm firms carry it. Locksmiths carry it. Fire sprinkler contractors carry it. So does a fence company. AC is the series prefix for company licenses in this program — not a specialty code, and no guide at all to what a company may do.

Source: Oklahoma Department of Labor, Active alarm company licenses (list of record, June 30, 2026)

The numbers run short and long with no pattern you can lean on. Entries look like AC51, AC1722 and AC440684. A long number is not newer or more legitimate than a short one. What matters is whether the number and the company name appear together on the current list with an expiration date that has not passed.

Source: Oklahoma Department of Labor, Active alarm company licenses (list of record, June 30, 2026)

Individual licenses and the endorsement codes nobody explains

People are licensed separately from the firms that employ them, and their numbers use an A prefix rather than AC — entries look like A473022. There were 4,484 active individual licenses on the June 30, 2026 list.

Source: Oklahoma Department of Labor, Active alarm individual licenses (list of record, June 30, 2026)

Beside each name sits a string of endorsement codes: BA, CFA, RFA, RFB, CFB, RSA, MF, NC, DOD and others, most carrying a trailing letter. The codes are real and they are on the official list. What the state does not publish is a legend. There is no key in the rules and none on the list itself.

Source: Oklahoma Department of Labor, Active alarm individual licenses (list of record, June 30, 2026)

We are not going to guess at them, because a guess printed on a page like this becomes a fact somebody repeats. If the endorsement matters to your job — and it does for anything involving a commercial fire alarm — ask the company in writing which category its technicians hold and confirm it with ODOL Licensing at (405) 521-2150.

Source: Oklahoma Department of Labor, Active alarm individual licenses (list of record, June 30, 2026); Oklahoma Department of Labor, Verify licenses, permits and registrations

What the law makes them display, and what you can check from your driveway

Oklahoma's display rule is the most useful consumer protection in the chapter, because it works before you download anything. OAC 380:75-3-2 requires the company license number — or a website or toll-free number where licensing information can be obtained — on nearly every surface the company puts in front of you.

Source: Oklahoma Department of Labor (Oklahoma Administrative Code Title 380, Chapter 75), OAC 380:75-3-2 — license display on advertising, vehicles and contracts

Where an Oklahoma alarm company's license number has to appear
WhereWhat the rule requires
Contracts, bids and estimatesThe license number, or a reference to a website or toll-free number where licensing information can be obtained.
Letterhead, business cards, invoices, statementsSame requirement. All four named in the rule.
Printed and electronic advertising, decals, yard signsSame requirement. All named in the rule.
The company websiteProminently displayed, on the home page or on every page advertising a regulated product or service.
Vehicles showing the company nameNumerals two inches or more in height, on every side of the vehicle that shows the name.
The job siteAt least one company vehicle showing the number and name. Fire sprinkler firms may substitute a two-foot by two-foot sign.
The technicianMust carry the state-issued license card and a state photo ID any time they are working.

Source: Oklahoma Department of Labor (Oklahoma Administrative Code Title 380, Chapter 75), OAC 380:75-3-2 — license display on advertising, vehicles and contracts

Read that as a homeowner rather than as a rulebook. A licensed company cannot lawfully pull a lettered van into your driveway with no two-inch numerals on the side, hand you a contract with no license number on it, or run a website advertising alarm installation with the number nowhere to be found. Missing all three does not prove a company is unlicensed. It does hand you a rule violation you can see without leaving your porch, before anyone comes inside.

Source: Oklahoma Department of Labor (Oklahoma Administrative Code Title 380, Chapter 75), OAC 380:75-3-2 — license display on advertising, vehicles and contracts

Asking a technician to show the license card is neither rude nor unusual. The rule requires it on their person while working, with a state photo ID. A licensed technician produces both without blinking.

Source: Oklahoma Department of Labor (Oklahoma Administrative Code Title 380, Chapter 75), OAC 380:75-3-2 — license display on advertising, vehicles and contracts

What unlicensed work costs the company

The rules prohibit unlicensed burglar alarm, fire alarm, sprinkler alarm, locksmithing, electronic access control, CCTV, nurse call and monitoring work, and separately prohibit a firm from putting an unlicensed person on that work. Enforcement runs on a published citation schedule, so the amounts are not discretionary.

Source: Oklahoma Department of Labor, Alarm, Locksmith and Fire Sprinkler Industry Act (59 O.S. § 1800.1 et seq.) and Oklahoma Administrative Code Title 380, Chapter 75

Oklahoma citation fines for licensing violations (OAC 380:75-7-3)
ViolationFirst offenseSubsequent
Doing business without a license in the right category$200$200
Company employing an unlicensed person, per person$100$200
Altering a license$200$200
Failure to display the company license conspicuously$50$200
Individual not carrying their personal license$50$200
Failure to display the company license number as required$200$200
Employing a worker without a properly licensed manager supervising$200$200

Source: Oklahoma Department of Labor, Alarm, Locksmith and Fire Sprinkler Industry Act (59 O.S. § 1800.1 et seq.) and Oklahoma Administrative Code Title 380, Chapter 75

Above the citation schedule sits the statute. Under 59 O.S. § 1800.16, a violation of the Act is a misdemeanor punishable by up to one year in the county jail, a fine of up to $500, or both. The Department may also impose an administrative fine of up to $200 per violation, with each day treated as a separate violation, capped at $1,000.

Source: Oklahoma Department of Labor, Alarm, Locksmith and Fire Sprinkler Industry Act (59 O.S. § 1800.1 et seq.) and Oklahoma Administrative Code Title 380, Chapter 75

Oklahoma City treats it as a city offense as well

Inside Oklahoma City limits there is a second layer. Municipal Code section 43-83 makes it unlawful to own, manage, conduct or carry on an alarm business within the City without a valid state license under the Alarm, Locksmith and Fire Sprinkler Industry Act. Subsection (b) applies the same rule to employees.

Source: City of Oklahoma City, Ordinance No. 26,140 — Municipal Code ch. 43 art. III (alarm systems) and § 60-43-11/13 fees

A violation of that article carries a fine of up to $100 on conviction. The amount is small next to the state penalties, but an unlicensed installer working an Oklahoma City address is breaking two rules at once, and the city one is enforced by a department a homeowner can actually call. Your own alarm permit is a separate obligation, covered in our guide to Oklahoma City alarm permits and false alarm fines.

Source: City of Oklahoma City, Ordinance No. 26,140 — Municipal Code ch. 43 art. III (alarm systems) and § 60-43-11/13 fees

Residential and commercial fire alarm licenses are not the same license

Fire alarm company licenses in Oklahoma are split into residential and commercial classes. A residential license is restricted to residential buildings and manufactured housing. A commercial license may serve either. That distinction is the one most likely to cost a small business owner money.

Source: Oklahoma Department of Labor (Oklahoma Administrative Code Title 380, Chapter 75), OAC 380:75-3-4 — residential vs commercial fire alarm company licenses

A residential-only licensee legally cannot certify a commercial fire alarm system. Hire on price for a shop, a clinic or a warehouse without checking the class and you can end up with an inspection that does not count and has to be paid for twice. The tagging rules and the annual inspection behind them are covered in our guide to commercial fire alarm inspection requirements in Oklahoma.

Source: Oklahoma Department of Labor (Oklahoma Administrative Code Title 380, Chapter 75), OAC 380:75-3-4 — residential vs commercial fire alarm company licenses

The rules also require fire alarm equipment to be listed by UL, FM or another nationally recognized testing entity. Ask for the license class in writing and keep the answer with your inspection paperwork.

Source: Oklahoma Department of Labor (Oklahoma Administrative Code Title 380, Chapter 75), OAC 380:75-3-4 — residential vs commercial fire alarm company licenses

Monitoring is a separate license, and UL listing is not required here

A company that watches your alarm signals needs its own credential. OAC 380:75-3-5 requires a state monitoring license for any company that offers or provides monitoring to property in Oklahoma, plus an Oklahoma-licensed alarm monitoring manager. A firm can be properly licensed to install and still hand the signals to a monitoring partner you have not checked. Ask who actually monitors the account and whether that company holds an Oklahoma monitoring license.

Source: Oklahoma Administrative Code (via Cornell LII), OAC 380:75-3-5 — monitoring company license and Enhanced Call Verification

The same rule makes Enhanced Call Verification mandatory: before requesting a dispatch, the station must call the alarm site and then a second number belonging to someone authorized to cancel. That is Oklahoma law, not a feature a company chose to offer.

Source: Oklahoma Administrative Code (via Cornell LII), OAC 380:75-3-5 — monitoring company license and Enhanced Call Verification

What Oklahoma does not require is UL listing. UL Solutions certifies central stations — the staffed facilities that receive alarm signals — against UL 827 and re-audits them every year. It is a real credential and worth asking about. It is also voluntary here, so a company without it breaks no Oklahoma rule, and a company that advertises it has cleared a bar the law never set.

Source: Oklahoma Administrative Code (via Cornell LII), OAC 380:75-3-5 — monitoring company license and Enhanced Call Verification; UL Solutions, Central station service certification (UL 827)

The short version

  • The Oklahoma Department of Labor licenses alarm companies under 59 O.S. § 1800.1 and OAC Title 380, Chapter 75.
  • The lookup is two downloadable PDF lists, not a search form. Ctrl+F the name, then check the expiration date.
  • If the name is not there, call ODOL Licensing at (405) 521-2150. Trade names and license names often differ.
  • AC is the prefix on every company license in the program. It does not mean access control.
  • Individual licenses use an A prefix, and the endorsement codes have no published legend. Ask which category the technicians hold.
  • The license number belongs on contracts, advertising, yard signs, the website, and every lettered side of the vehicle in two-inch numerals.
  • Unlicensed work draws a $200 citation and is a misdemeanor under 59 O.S. § 1800.16, with up to a year in jail and a $500 fine.
  • Inside Oklahoma City it is also a city offense under section 43-83, fined up to $100.
  • A residential-only fire alarm licensee cannot certify a commercial system.
  • Monitoring needs its own Oklahoma license and Enhanced Call Verification is mandatory. UL listing is not.

Source: Oklahoma Department of Labor, Alarm, Locksmith and Fire Sprinkler Industry Act (59 O.S. § 1800.1 et seq.) and Oklahoma Administrative Code Title 380, Chapter 75; Oklahoma Department of Labor, Verify licenses, permits and registrations; Oklahoma Department of Labor, Active alarm company licenses (list of record, June 30, 2026); Oklahoma Department of Labor, Active alarm individual licenses (list of record, June 30, 2026); Oklahoma Department of Labor (Oklahoma Administrative Code Title 380, Chapter 75), OAC 380:75-3-2 — license display on advertising, vehicles and contracts; Oklahoma Department of Labor (Oklahoma Administrative Code Title 380, Chapter 75), OAC 380:75-3-4 — residential vs commercial fire alarm company licenses; Oklahoma Administrative Code (via Cornell LII), OAC 380:75-3-5 — monitoring company license and Enhanced Call Verification; City of Oklahoma City, Ordinance No. 26,140 — Municipal Code ch. 43 art. III (alarm systems) and § 60-43-11/13 fees

Common questions

How do I find out if an alarm company in Oklahoma is licensed?
Go to the Oklahoma Department of Labor's verify licenses, permits and registrations page and download the active alarm company license list. It is a free PDF with no login, refreshed monthly, and you search it with Ctrl+F for the company name. The entry shows the license number, the company name and the expiration date. If you cannot find the name, call ODOL Licensing at (405) 521-2150 or email ODOL.Licensing@labor.ok.gov, because companies sometimes trade under a name that differs from the one on the license.
Does an Oklahoma license starting with AC mean access control?
No. AC is the prefix on every alarm company license the Oklahoma Department of Labor issues under this program. All 722 active company licenses on the June 30, 2026 list carry it, including burglar alarm firms, locksmiths, fire sprinkler contractors and even a fence company. Third-party sites that claim AC designates access control are wrong at the company level, and the prefix cannot be used to work out what a company is allowed to install.
What do the endorsement codes on an Oklahoma alarm technician's license mean?
The codes are real — BA, CFA, RFA, RFB, CFB, RSA, MF, NC, DOD and others appear on the state's active individual license list. The Oklahoma Department of Labor does not publish a legend for them, and there is no key in the rules or on the list itself. Anyone offering you a decode table is guessing. Ask the company in writing which endorsement category its technicians hold and confirm it with ODOL Licensing at (405) 521-2150.
Is an alarm company required to put its license number on the truck?
Yes. Under OAC 380:75-3-2, an Oklahoma alarm company must display its state-issued license number in numerals two inches or more in height on every side of a vehicle that displays the company name, and at least one such vehicle must be at the job site. The number also has to appear on contracts, bids, estimates, invoices, business cards, printed and electronic advertising, decals, yard signs and the company website. Failure to display the license number as required draws a $200 citation.
What is the penalty for doing alarm work without a license in Oklahoma?
The citation for doing business without a license in the correct category is $200, and a firm that employs an unlicensed person is fined $100 per person for a first offense and $200 after that. Beyond the citation schedule, 59 O.S. § 1800.16 makes a violation of the Alarm, Locksmith and Fire Sprinkler Industry Act a misdemeanor punishable by up to one year in the county jail, a fine of up to $500, or both, plus an administrative fine of up to $200 per violation with each day counted separately and a $1,000 cap.
Can I cancel my contract if the alarm company turns out to be unlicensed?
We could not find any Oklahoma statute or rule saying that a contract with an unlicensed alarm company is void, unenforceable or automatically refundable, so we will not tell you that it is. The penalties in Oklahoma law run against the company, not in favor of the contract. Report the company to Oklahoma Department of Labor Licensing at (405) 521-2150 and speak to a lawyer about the agreement itself.
Does an Oklahoma monitoring company have to be UL listed?
No. Oklahoma requires a state monitoring license under OAC 380:75-3-5 for any company that provides monitoring to property in the state, along with an Oklahoma-licensed alarm monitoring manager and mandatory Enhanced Call Verification before a dispatch is requested. The rule contains no UL listing requirement. UL certification against UL 827 is a voluntary credential that is re-audited annually, so it is worth asking about, but a company without it is not violating any Oklahoma rule.

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Sources

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