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Oklahoma: no state contractor license, but the trades are licensed
Oklahoma has no state license for general or handyman work. Plumbing, electrical and HVAC: state license. Read from Oklahoma's own pages, checked November 6, 2026.
The limit in Oklahoma
The limit: there is no state license for general or handyman work, so there is no state dollar limit. No state license for general or handyman work: "General Contractors are not currently required to have a state license in Oklahoma for general contracting." But the CIB says "trade licenses/registrations are required for performing, or offering to perform, licensed/registered trade work" (plumbing, electrical, mechanical, roofing). The Electrical License Act exempts minor repairs ("repairing or replacing outlets or minor working parts of electrical fixtures"). Cities may have their own rules (not checked).
Licenses in Oklahoma
General contractors: No state license. No state general-contractor license. Licensed trades only: plumbing, electrical, mechanical (CIB licenses) and roofing (CIB registration).
Plumbing: State license. CIB plumbing contractor/journeyman license; unlawful to engage in or offer to engage in the business of plumbing unlicensed (59 O.S. § 1012).
Electrical: State license. CIB electrical contractor/journeyman license (59 O.S. § 1690); minor repairs such as replacing outlets exempt (59 O.S. § 1692).
HVAC: State license. Covered by the CIB mechanical license: "mechanical work" includes heating, cooling, refrigeration and ventilation systems (59 O.S. § 1850.2, § 1850.7).
Your license number in Oklahoma
Your license number: Plumbing, electrical and mechanical contractors must show the number on advertising, contracts, bids and vehicles. None of these rules names invoices.
In the rule's words: “All Vehicles must display the firm name and the license number bearing the initials "OK" preceding that number. ... Contractors must display this number on all advertising, contracts, and bids.” (CIB Active Contractor Requirements (plumbing/electrical/mechanical contractors); roofing: 59 O.S. § 1151.7, § 1151.17)
Oklahoma's board, and when this was checked
The board: Oklahoma Construction Industries Board (CIB). As of November 6, 2026. Dates on the state's pages: CIB About page last updated 2024-08-21, Active Contractor Requirements last modified 2026-05-14, Electrical License Act copy eff. 2025-11-01 and CIB FAQ last modified 2025-12-30.
This is a summary of each state's own pages as of November 6, 2026, not legal advice. Rules change, and cities and counties add licenses of their own. Check with your state's board, linked on this page, before you rely on it.
Compare Oklahoma with every state's limit.
Official sources for Oklahoma
7 of Oklahoma's own pages, each quoted with its link:
- Construction Industries Board (0170) - Oklahoma.gov: “General Contractors are not currently required to have a state license in Oklahoma for general contracting. However, trade licenses/registrations are required for performing, or offering to perform, licensed/registered trade work.”
- About - Construction Industries Board: “plumbers, electricians, mechanical tradespeople, home inspectors, building inspectors, and roofing”
- Active Contractor Requirements - CIB: “All Vehicles must display the firm name and the license number bearing the initials "OK" preceding that number. ... Contractors must display this number on all advertising, contracts, and bids.”
- The Plumbing License Law of 1955 (CIB copy) (59 O.S. § 1012): “it shall be unlawful and a misdemeanor for any person, firm, partnership, association or corporation to act as a master plumber or plumbing contractor or to engage in or offer to engage in, by advertisement or otherwise, the business of plumbing”
- Electrical License Act, eff. 11-1-2025 (CIB copy) (59 O.S. § 1690; § 1692 (minor repairs exemption: "repairing or replacing outlets or minor working parts of electrical fixtures")): “it shall be a misdemeanor for any person to act as an electrical contractor or to engage in or offer to engage in, by advertisement or otherwise, the business of an electrical contractor until the person ... is licensed as an electrical contractor.”
- Mechanical Licensing Act (CIB copy) (59 O.S. § 1850.7; definition of "Mechanical work" (heating, cooling, mechanical refrigeration, ventilation) in § 1850.2): “No person shall engage or offer to engage in, by advertisement or otherwise, any mechanical work as a journeyman or contractor who does not possess a valid and appropriate license from the Construction Industries Board.”
- Roofing Contractor Registration Act (CIB copy) (59 O.S. § 1151.17(C); also § 1151.7 (vehicles, contracts, bids, advertisements)): “A roofing contractor shall display his or her roofing contractor registration number ... on every business sign, card, correspondence, and contract used to solicit and conduct roofing services in this state”
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