Missouri Contractor Licenses: Updated Requirements Guide
Planning construction work in Missouri? Licensing here follows a dual structure: certain trades are licensed by state agencies, while most building, plumbing, mechanical, and many specialty activities are licensed or registered by cities and counties. Understanding which authority regulates your scope of work is the fastest path to getting permitted and on the job.
This guide spotlights several common licenses and jurisdictions to help you get oriented; we update it periodically. You will find a dedicated section for state-level credentials up front, followed by per-trade sections covering local requirements in major Missouri jurisdictions. Official links are provided throughout so you can verify current rules, fees, and forms before you apply.
Missouri’s largest markets—Kansas City, St. Louis, Springfield, Columbia, and Independence—feature prominently, and you will also see representative county requirements where relevant. Because many contractors work across city lines, keep in mind that you may need multiple local licenses in addition to any statewide credentials.
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Overview of Missouri Contractor Licensing
Missouri uses a mixed system. Several trades are regulated by state agencies—most notably statewide electrical contracting, lead abatement and lead professionals, well and pump installation contractors, and elevator contractors. Environmental certifications (like asbestos occupations) are also handled at the state level.
At the same time, building, general contracting, plumbing, mechanical/HVAC, and many specialty disciplines are licensed locally by cities and counties. Major authorities include the City of Kansas City (City Planning & Development – Permits Division), the City of St. Louis (License Collector’s Office), the City of Springfield (License Division and Building Development Services), the City of Columbia (Board of Plumbing Examiners), and the City of Independence (Community Development Department). County programs—such as Jefferson County’s sprinkler fitter contractor licensing—also play a role.
Because permitting and inspections are local, you’ll often need both: a state credential (when your trade is regulated statewide) and a city/county contractor or trade license where the work occurs. The sections below separate state-level licenses from local credentials so you can pinpoint what applies to your scope and location.
Browse all Missouri contractor license practice tests →
State-Level Licenses in Missouri
State-level licenses are issued by Missouri agencies and apply statewide. These credentials include the statewide electrical contractor license (administered by the Division of Professional Registration), lead abatement and related lead professional licenses (DHSS), well and pump installation contractor permits (DNR), elevator contractor licenses (Division of Fire Safety), and asbestos occupation certifications (DNR).
Trades with state-level licensing are listed below. If your work does not fall under these programs, proceed to the per-trade sections for local licensing requirements.
State-Level Electrician Licenses
Electrical Contractor
Authority: Missouri Office of Statewide Electrical Contractors, Division of Professional Registration — https://pr.mo.gov
Exam: PSI-administered Missouri Statewide Electrical Contractor Examination, with NASCLA Accredited Electrical Examination and certain ICC-based alternatives accepted per the state’s approved list.
Exam format/topics: Computer-based, multiple-choice. Core domains include the National Electrical Code (NEC), electrical theory and wiring methods, grounding and bonding, load calculations, and applicable safety and code requirements. NASCLA and ICC routes are typically open-book; refer to PSI/ICC bulletins for reference lists and rules.
Notes: The state publishes an approved examinations list confirming accepted routes for qualification.
Contact the Missouri Office of Statewide Electrical Contractors to confirm fees, insurance minimums, experience requirements, and renewal details before applying.
Source: Approved Examinations
State-Level Specialty Licenses
Lead Abatement Contractor License
Authority: Missouri Department of Health and Senior Services – Lead Licensing Program — https://health.mo.gov/business-professionals/lead-licensing
Training: Completion of an LLP- or EPA-accredited lead abatement contractor course.
Fees: Application $250; Initial license $250; Renewal $250.
Insurance: General liability insurance required (proof submitted with application).
Renewal: Every 2 years; maintain current training and any required refresher courses.
Source: DHSS Lead Licensing
Lead Inspector License
Authority: DHSS – Lead Licensing Program — https://health.mo.gov/business-professionals/lead-licensing
Training/exam: Accredited lead inspector course (min. 70% course score) and a state examination covering inspection protocols, sampling, Missouri rules, and reporting.
Fees: Application $100; Initial $100; Renewal $100.
Renewal: Every 2 years with required refresher training.
Lead Risk Assessor License
Authority: DHSS – Lead Licensing Program — https://health.mo.gov/business-professionals/lead-licensing
Training/exam: Accredited risk assessor course (min. 70% course score) and a state exam covering risk assessment methods, EBL investigations, hazard screens, and state reporting.
Fees: Application $100; Initial $100; Renewal $100.
Renewal: Every 2 years with required refresher training.
Source: DHSS Lead Licensing Definitions
Lead Abatement Supervisor License
Authority: DHSS – Lead Licensing Program — https://health.mo.gov/business-professionals/lead-licensing
Training/exam: Accredited supervisor course (min. 70% course score) and a state exam covering project supervision, abatement methods, occupant protection plans, and clearance.
Fees: Application $100; Initial $100; Renewal $100.
Renewal: Every 2 years with required refresher training.
Lead Abatement Project Designer License
Authority: DHSS – Lead Licensing Program — https://health.mo.gov/business-professionals/lead-licensing
Training: Accredited project designer course (min. 70% course score). Experience/education must meet DHSS criteria for designing abatement projects.
Fees: Application $100; Initial $100; Renewal $100.
Renewal: Every 2 years with required refresher training.
Apprentice Well and Pump Installation Contractor Permit
Authority: Missouri Department of Natural Resources – Well Installation Section — https://dnr.mo.gov/water/apprentice-well-pump-installation-contractor-permit-license
Exam: Open-book online general tests via WIMS 2.0 (minimum passing score 70%). Topics include water well standards, monitoring wells/heat pump wells, plugging, and reporting procedures.
Fees: Application $150; Exam $50; Initial $150; Renewal $150.
Renewal: Annual; expires and must be renewed by October 1.
Source: DNR Apprentice Permit
Restricted Well and Pump Installation Contractor Permit
Authority: Missouri DNR – Well Installation Section — https://dnr.mo.gov/land-geology/businesses-landowners-permittees/wells-drilling/pump-installation-contractor-permitting
Exam: Open-book online general tests via WIMS 2.0 (minimum passing score 70%). Content addresses Missouri Well Construction Rules, supervision duties, and compliance with the Water Well Driller’s Act.
Fees: Application $150; Exam $50; Initial $150; Renewal $150.
Renewal: Annual.
Source: DNR Well/Pump Permitting
Non-restricted Well and Pump Installation Contractor Permit
Authority: Missouri DNR – Well Installation Section — https://dnr.mo.gov/land-geology/businesses-landowners-permittees/wells-drilling/pump-installation-contractor-permitting
Experience/exam: Requires completion of a two-year apprenticeship with the required number of installations. Closed-book tests are administered in person at the Missouri Geological Survey office in Rolla (minimum passing score 70%).
Fees: Application $150; Exam $50; Initial $150; Renewal $150.
Renewal: Annual.
Source: DNR Well/Pump Permitting
Elevator Contractor I License
Authority: Missouri Division of Fire Safety – Elevator Safety Unit — https://dfs.dps.mo.gov/programs/elevator/memos.php
Scope: Full elevator contracting; business must employ state-licensed elevator mechanics and be in good standing with the Secretary of State, with no retail sales tax due.
Fees: Application $200; Initial $200; Renewal $200.
Insurance: General liability at least $1,000,000 per occurrence and $500,000 property damage per occurrence, plus statutory workers’ compensation.
Renewal: Every 2 years.
Sources: 11 CSR 40-5.175 | DFS Application
Elevator Contractor II License
Authority: Missouri Division of Fire Safety – Elevator Safety Unit — https://dfs.dps.mo.gov/programs/elevator/memos.php
Scope: Platform lifts and stairway chairlifts as defined in 11 CSR 40-5.180. Similar business and mechanic employment requirements as Contractor I.
Fees: Application $200; Initial $200; Renewal $200.
Insurance: General liability at least $1,000,000 per occurrence and $500,000 property damage per occurrence, plus statutory workers’ compensation.
Renewal: Every 2 years.
Source: 11 CSR 40-5.180
Asbestos Occupation Certification
Authority: Missouri Department of Natural Resources – Air Pollution Control Program — https://dnr.mo.gov/permits-certifications-registrations-licenses/by-business-type/demolition-renovation-activities
Training/exam: Completion of an approved asbestos training course for the specific occupation (e.g., worker, supervisor, inspector, management planner, project designer). Competency determinations and any exams are conducted with accredited training and DNR requirements.
Renewal: Occupation-specific; follow DNR requirements for refreshers and validity periods.
Electrician Licenses in Missouri
Local jurisdictions in Missouri that issue their own electrician licenses are listed below. State-level electrician licenses are covered in the State-Level Licenses section above.
Springfield Master Electrician (Local Jurisdiction)
Authority: City of Springfield Building Development Services – Trade Certification — https://www.springfieldmo.gov
Exam: ICC W16 Master Electrician, computer-based, open-book (100 questions, 300 minutes). Allowed NEC references per ICC bulletin.
Topics: NEC general requirements; services/feeders; branch circuits/conductors; grounding/bonding; motors/controls; special occupancies/equipment.
Fee (exam): $115 (ICC/Pearson VUE).
Insurance: General liability and workers’ compensation as required under Springfield business licensing.
Contact City of Springfield Building Development Services to confirm application fees, experience documentation, and renewal details before applying.
Sources: ICC Springfield Bulletin
Springfield Journeyman Electrician (Local Jurisdiction)
Authority: City of Springfield Building Development Services – Trade Certification — https://www.springfieldmo.gov
Exam: ICC W17 Journeyman Electrician, computer-based, open-book (80 questions, 240 minutes). Allowed NEC references per ICC bulletin.
Topics: Fundamentals; branch circuits; feeders/services; grounding; raceways; residential/light commercial wiring.
Fee (exam): $115 (ICC/Pearson VUE).
Insurance: General liability and workers’ compensation per Springfield requirements.
Contact City of Springfield Building Development Services to confirm application fees, experience documentation, and renewal details before applying.
Sources: ICC Springfield Bulletin
Kansas City Master Electrician (Local Jurisdiction)
Authority: City of Kansas City City Planning & Development – Permits Division — https://www.kcmo.gov/city-hall/departments/city-planning-development/contractor-licensing
Exam: ICC 701 Master Electrician, computer-based, open-book (100 questions, 300 minutes). NEC references per ICC Kansas City bulletin.
Topics: NEC general requirements; services/feeders/branch circuits; overcurrent protection; grounding/bonding; raceways/conductors; motors/transformers/special equipment.
Fee (exam): $100 (ICC/Pearson VUE).
Insurance: General liability and workers’ compensation per Kansas City contractor licensing rules.
Contact Kansas City Permits Division to confirm application fees, experience requirements, and renewal details before applying.
Source: ICC Kansas City Bulletin
Exam Prep: PDF study guide with 1,500-2,500 questions, complete answer keys, and reference locators to exact code sections. Study offline; no time or use limits. Missouri Master Electrician 2017 Practice Test.
Kansas City Low-voltage Electrician (Local Jurisdiction)
Authority: City of Kansas City City Planning & Development – Permits Division — https://www.kcmo.gov/city-hall/departments/city-planning-development/contractor-licensing
Exam: ICC 218 Low-voltage Electrician, computer-based, open-book (50 questions, 180 minutes). Low-voltage/NEC references per ICC bulletin.
Topics: Power-limited circuits; communications cabling; signaling; code provisions for low-voltage systems.
Fee (exam): $100.
Insurance: General liability and workers’ compensation per Kansas City requirements.
Contact Kansas City Permits Division to confirm application fees, experience requirements, and renewal details before applying.
Source: ICC Kansas City Bulletin
Kansas City Maintenance Electrician (Local Jurisdiction)
Authority: City of Kansas City City Planning & Development – Permits Division — https://www.kcmo.gov/city-hall/departments/city-planning-development/contractor-licensing
Exam: ICC 704 Maintenance Electrician, computer-based, open-book (60 questions, 180 minutes). NEC references per ICC bulletin.
Topics: Maintenance/repair of existing systems; troubleshooting; safe code-compliant alterations; equipment replacement.
Fee (exam): $100.
Insurance: General liability and workers’ compensation per Kansas City requirements.
Contact Kansas City Permits Division to confirm application fees, experience requirements, and renewal details before applying.
Source: ICC Kansas City Bulletin
Plumbing Licenses in Missouri
Local jurisdictions in Missouri that issue their own plumbing licenses are listed below.
Kansas City Master Plumber with Gas (Local Jurisdiction)
Authority: City of Kansas City City Planning & Development – Permits Division — https://www.kcmo.gov/city-hall/departments/city-planning-development/contractor-licensing
Exam: ICC 674 Master Plumber with Gas (100 questions, 240 minutes), open-book with UPC and gas code references per ICC bulletin.
Topics: Administration; fixtures; water supply/distribution; sanitary drainage/venting; storm drainage; gas piping; plan reading/analysis.
Fee (exam): $100.
Contractor requirements: General liability, workers’ compensation, and license/permit bond per Kansas City rules.
Contact Kansas City Permits Division to confirm application fees, experience requirements, and renewal details before applying.
Source: ICC Kansas City Bulletin
Kansas City Journeyman Plumber with Gas (Local Jurisdiction)
Authority: City of Kansas City City Planning & Development – Permits Division — https://www.kcmo.gov/city-hall/departments/city-planning-development/contractor-licensing
Exam: ICC 675 Journeyman Plumber with Gas (70 questions, 180 minutes), open-book with UPC and gas references per ICC bulletin.
Topics: Fixtures; water supply/distribution; sanitary drainage/venting; gas piping; plan reading; compliant installation practices.
Fee (exam): $100.
Contractor requirements: General liability, workers’ compensation, and license/permit bond per Kansas City rules.
Contact Kansas City Permits Division to confirm application fees, experience requirements, and renewal details before applying.
Source: ICC Kansas City Bulletin
Columbia Journeyman Plumber (Local Jurisdiction)
Authority: City of Columbia Board of Plumbing Examiners — https://www.como.gov/boards/board-of-plumbing-examiners/
Experience: At least 8,000 hours as an apprentice plumber under a certified master plumber or equivalent experience acceptable to the board.
Exam: Written examination prepared by Thomson Prometric or ICC National Standardized Examinations Program; passing score 75%.
Renewal: Every 3 years; renewal fee $30.
Insurance/Bond: Bond/insurance required per the City’s protective inspection policies.
Contact the Board of Plumbing Examiners to confirm application fees, allowed materials, and current testing provider before applying.
Source: Columbia Plumbing Application
Columbia Master Plumber (Local Jurisdiction)
Authority: City of Columbia Board of Plumbing Examiners — https://www.como.gov/boards/board-of-plumbing-examiners/
Experience: At least 4,000 hours as a certified journeyman plumber or Missouri PE actively engaged in plumbing.
Exam: Written examination prepared by Thomson Prometric or ICC National Standardized Examinations Program; passing score 75%.
Renewal: Every 3 years; renewal fee $90.
Insurance/Bond: Bond/insurance required per City policies.
Contact the Board of Plumbing Examiners to confirm application fees, allowed materials, and current testing provider before applying.
Source: Columbia Plumbing Application
HVAC Licenses in Missouri
Local jurisdictions in Missouri that issue their own HVAC licenses are listed below.
Independence Class D Mechanical, Electrical and Plumbing Contractor License (Local Jurisdiction)
Authority: City of Independence Community Development Department — https://apps.indepmo.org/Apps/CommunityDevelopment/Contractor/Application
Experience: Three years of documented proof as an apprentice or journeyman in the specific trade.
Exam: Certificate of Competency exam by a nationally recognized testing agency (e.g., Prometric or ICC) with a minimum passing score of 75%.
Insurance/Bond: General liability, workers’ compensation, and a security bond per ordinance.
Renewal: Annual; licenses expire December 31 each year.
Contact the City of Independence to confirm application fees, testing provider logistics, and current documentation requirements before applying.
Source: Independence Ordinance
Springfield Mechanical Contractor License (Local Jurisdiction)
Authority: City of Springfield License Division and Building Development Services — https://www.springfieldmo.gov/345/Business-Licensing
Exam: ICC mechanical trade certification examination (open-book) via Pearson VUE; typical passing score 75%.
Topics: IMC and local amendments; system design; installation and safety; gas piping and venting.
Fee (exam): Approximately $125 (ICC testing fee).
Insurance/Bond: Liability insurance and bond required; workers’ compensation proof where applicable.
Contact Springfield Building Development Services to confirm application fees, qualifying experience criteria, and renewal details before applying.
📍 Missouri Uses Local Licensing
Some contractor licensing in Missouri is handled by individual cities and counties rather than a state board. As a result, application forms, insurance minimums, exams, and renewal cycles can vary from one jurisdiction to another.
What this means for you:
- Contact the specific city or county where you will perform work to confirm current requirements.
- Expect to maintain multiple licenses if you work across different municipalities.
- Insurance certificates may need to name each city/county individually.
- Renewal cycles and CE requirements vary — track each separately.
To prepare efficiently for any required local competency exams, use code-focused study materials matching the code editions used by your jurisdiction.
General Contractor Licenses in Missouri
Local jurisdictions in Missouri that issue their own general contractor licenses are listed below.
Construction Industry Contractor Graduated Business License (St. Louis) (Local Jurisdiction)
Authority: City of St. Louis License Collector’s Office — https://www.stlouis-mo.gov/government/departments/license
Scope: Business license for contractors/subcontractors operating in St. Louis.
Exam: Not required for the Graduated Business License.
Insurance: Workers’ compensation coverage or exemption statement; general liability is typical for construction businesses.
Renewal: Annual.
Contact the License Collector’s Office for current fee schedules, bonding (if any), and required documentation before applying.
Kansas City Contractor License (Local Jurisdiction)
Authority: City of Kansas City City Planning & Development – Permits Division — https://www.kcmo.gov/city-hall/departments/city-planning-development/contractor-licensing
Qualification: The business designates a qualified supervisor who must obtain a Certificate of Qualification (trade-specific exam/experience) before the contractor license is issued.
Insurance: General liability and workers’ compensation per city rules.
Renewal: Many Kansas City contractor license classes renew on multi-year cycles (often four years); verify with the Permits Division.
Contact Kansas City for license class options, fee schedules, bonding, and the specific supervisor exam requirements that apply to your scope.
Source: Kansas City Contractor Licensing
Independence Class A General Contractor License (Local Jurisdiction)
Authority: City of Independence Community Development Department — https://apps.indepmo.org/Apps/CommunityDevelopment/Contractor/Application
Qualification: Certificate of competency with a 75% passing score from Prometric/ICC or other nationally recognized testing institution, or an approved bachelor’s degree (engineering, architecture, or construction science).
Insurance: General liability and workers’ compensation per city code.
Renewal: Annual; licenses expire December 31.
Contact Independence for current fee schedules, acceptable exams/degrees, bonding, and documentation checklists before applying.
Source: Independence Ordinance
Independence Class B Building Contractor License (Local Jurisdiction)
Authority: City of Independence Community Development Department — https://apps.indepmo.org/Apps/CommunityDevelopment/Contractor/Application
Qualification: Certificate of competency (75% minimum) from Prometric/ICC or other approved institution, or approved bachelor’s degree.
Insurance: General liability and workers’ compensation per city code.
Renewal: Annual; licenses expire December 31.
Contact Independence for fee schedules, bonding requirements, and application documentation before applying.
Source: Independence Ordinance
Independence Class C Residential Contractor License (Local Jurisdiction)
Authority: City of Independence Community Development Department — https://apps.indepmo.org/Apps/CommunityDevelopment/Contractor/Application
Qualification: Certificate of competency (75% minimum) from Prometric/ICC or other approved institution, or approved bachelor’s degree.
Insurance: General liability and workers’ compensation per city code.
Renewal: Annual; licenses expire December 31.
Contact Independence for current fees, bonding requirements, and submittal checklists before applying.
Source: Independence Ordinance
Roofing Licenses in Missouri
Roofing contractor licensing in Missouri is administered locally. Confirm current rules, forms, and fees with your jurisdiction before applying or bidding.
Local Licensing Requirements
Major Cities with Local Requirements:
- City of Springfield Building Development Services – Trade Certification: Roofing contractors are commonly licensed/registered through local business and contractor processes; verify whether roofing falls under general or specialty categories, along with insurance/bonding and any competency criteria. Registration information: https://www.springfieldmo.gov
- City of Kansas City City Planning & Development – Permits Division: Contractor licensing administered by Planning & Development; confirm if roofing work is covered under general/specialty classifications, insurance, and supervisor qualification rules. Registration information: https://www.kcmo.gov/city-hall/departments/city-planning-development/contractor-licensing
- City of Columbia Board of Plumbing Examiners: Roofing is typically addressed by the building/contractor program rather than the plumbing board; coordinate with the city’s permitting office to confirm licensing, bonding, and documentation for roofing scopes. Registration information: https://www.como.gov/boards/board-of-plumbing-examiners/
- City of Independence Community Development Department: Roofing often falls under Class A/B/C contractor licensing, depending on project scope; verify insurance, bond, and acceptable exams/degrees. Registration information: https://apps.indepmo.org/Apps/CommunityDevelopment/Contractor/Application
- City of Springfield License Division and Building Development Services: Business licensing plus contractor/trade certification as applicable; confirm whether roofing requires a separate classification or falls under general contracting. Registration information: https://www.springfieldmo.gov/345/Business-Licensing
- City of St. Louis License Collector’s Office: Roofing firms typically obtain the Construction Industry Contractor Graduated Business License; verify additional trade registration, insurance, and bonding as required. Registration information: https://www.stlouis-mo.gov/government/departments/license
- Jefferson County Code Enforcement Division: County administers specialty fire sprinkler licensing; for roofing, coordinate with county/city permitting to verify contractor registration, insurance, and debris handling/notifications. Registration information: https://www.jeffcomo.gov
Note: Requirements vary by jurisdiction. Always confirm with your local building department before applying.
Specialty Trade Licenses in Missouri
Local jurisdictions in Missouri that issue specialty trade licenses are listed below. State-level specialty licenses are covered in the State-Level Licenses section above.
Jefferson County Sprinkler Fitter Contractor License (Local Jurisdiction)
Authority: Jefferson County Code Enforcement Division — https://www.jeffcomo.gov
Qualification: At least one designated employee aged 21+ who has passed an approved ICC sprinkler fitter exam (≥70% within past six years) and meets experience thresholds (10 years DOL-approved training/experience or 5 years with a reputable fire suppression contractor).
Fees: Application $30; Initial license $150; Renewal $150 (annual).
Insurance/Bond: General liability insurance ($1,000,000 aggregate; $250,000 per occurrence) and a $25,000 license bond; proof of workers’ compensation required.
Exam: ICC computer-based exam using accepted NFPA/ICC references; minimum passing score 70%.
Contact Jefferson County Code Enforcement to confirm submittal requirements and any current documentation updates before applying.
Source: Jefferson County Requirements
Kansas City Fire Protection Contractor License (Local Jurisdiction)
Authority: City of Kansas City City Planning & Development – Permits Division — https://www.kcmo.gov/city-hall/departments/city-planning-development/contractor-licensing
Qualification: A designated supervisor must hold a Fire Protection Supervisor Certificate of Qualification (Class I/II/III) meeting experience and exam criteria accepted by Kansas City.
Topics (supervisor exam): Automatic sprinkler/suppression system design; NFPA standards and local codes; hydraulic calculations; inspection/testing/maintenance.
Insurance: General liability and workers’ compensation per Kansas City contractor licensing requirements.
Contact Kansas City Permits Division to confirm the appropriate supervisor class, testing provider, bonding, and fee schedules before applying.
Source: Kansas City Contractor Licensing
Application Process
- Determine whether work falls under statewide trade licensing (electrical contractor, lead abatement, wells, elevator) or local city/county licensing for general construction and most trades.
- For statewide electrical contracting, apply through the Missouri Office of Statewide Electrical Contractors via pr.mo.gov, meet experience and insurance requirements, and schedule the PSI-administered exam or approved NASCLA/ICC alternate.
- For lead abatement and lead professional licenses, submit applications to the DHSS Lead Licensing Program with training certificates, fees, and supporting documentation; schedule any required state examinations.
- For well and pump installation contractor permits, create a MoGEM and WIMS 2.0 account through the Missouri Department of Natural Resources, complete required open-book or closed-book tests, and pay permit fees.
- For elevator contractor licenses, submit the Elevator Contractor application to the Missouri Division of Fire Safety with proof of employing licensed mechanics, insurance certificates, business good standing, and fees.
- For general contractor and local trade licenses (electrical, plumbing, mechanical, fire protection), obtain a business license in the city, secure required insurance and bonds, pass trade exams where required (often ICC or Prometric), then apply for the contractor license through the city’s portal (e.g., CompassKC in Kansas City).
- Maintain license renewals on the required cycles (often annual or biennial) and update training, insurance, and bond documentation as needed.
Timeline: State trade licenses (electrical, lead, wells, elevator) typically process within several weeks after passing examinations and submitting complete applications; local contractor and trade licenses often require 30–90 days per city once trade exams and business requirements are met.
Reciprocity
Missouri has reciprocity with: Alabama, Arizona, Florida, Idaho, Kentucky, Louisiana, Mississippi, Nebraska, New Mexico, North Carolina, South Carolina, Tennessee, Utah, Virginia, West Virginia, District of Columbia
Requirements: Reciprocity is available only for the NASCLA Accredited Trade Examination for Electrical Contractors, Master and Unlimited Electricians administered through PSI and recognized by the Missouri Office of Statewide Electrical Contractors. Applicants must first be approved by NASCLA, sit the NASCLA electrical exam, and achieve the required passing score. A passing NASCLA score can then be used to qualify for electrical contractor licensing in Missouri and other participating jurisdictions, subject to each jurisdiction’s additional licensing requirements (experience, insurance, and local applications).
Frequently Asked Questions
How long does it take to get a contractor license in Missouri?
State trade licenses (electrical, lead, wells, elevator) typically process within several weeks after passing examinations and submitting complete applications; local contractor and trade licenses often require 30–90 days per city once trade exams and business requirements are met.
Can I transfer my license from another state to Missouri?
Missouri has reciprocity with Alabama, Arizona, Florida, Idaho, Kentucky, Louisiana, Mississippi, Nebraska, New Mexico, North Carolina, South Carolina, Tennessee, Utah, Virginia, West Virginia, District of Columbia. Reciprocity is available only for the NASCLA Accredited Trade Examination for Electrical Contractors, Master and Unlimited Electricians administered through PSI and recognized by the Missouri Office of Statewide Electrical Contractors. Applicants must first be approved by NASCLA, sit the NASCLA electrical exam, and achieve the required passing score. A passing NASCLA score can then be used to qualify for electrical contractor licensing in Missouri and other participating jurisdictions, subject to each jurisdiction’s additional licensing requirements (experience, insurance, and local applications).
What happens if I fail the exam?
Follow the retake policies of your testing provider (PSI, ICC/Pearson VUE, NASCLA) and any applicable city or state rules. Waiting periods and additional fees may apply.
Do I need insurance?
Yes. Most Missouri contractor and trade licenses require insurance. Examples include general liability and workers’ compensation for city contractor licenses; Jefferson County sprinkler fitter contractors must carry $1,000,000 aggregate liability and a $25,000 bond; elevator contractors require at least $1,000,000 per occurrence liability and $500,000 property damage plus workers’ compensation. Always verify minimums with your licensing authority.
How do I renew my license?
Renewal cycles vary by authority and license class. Examples: St. Louis Construction Industry Contractor business licenses renew annually; Independence contractor licenses expire December 31; DHSS lead professional and lead abatement contractor licenses renew every two years; elevator contractor licenses renew every two years; DNR well/pump permits renew annually; Columbia plumbing certificates renew every three years. Check your specific board’s renewal schedule and documentation requirements.
What if my city has different requirements than what’s shown here?
Some contractor licensing in Missouri varies by jurisdiction. The information shown is for cities/counties where official data is available. Always verify requirements with your local building department, as local regulations take precedence. Search for “[Your City/County] contractor license” to find requirements specific to your area.
Where can I find practice tests for Missouri exams?
We offer comprehensive PDF practice tests for Missouri contractor license exams. Each test typically contains 1,500 to 2,500 code-relevant questions with precise answer keys and reference locators showing exact code sections. Study offline at your own pace with no time or use limits. Browse Missouri contractor practice tests.
Missouri · Practice tests
Missouri contractor license practice tests
The Missouri practice tests we publish today: comprehensive PDF guides, typically 1,500 to 2,500 questions each, with full answer keys and reference locators to the exact code sections. We add new tests regularly, so if your license isn’t listed here, contact us and we’ll build it.
- Business, Law, and Project Management (NASCLA) Reference Practice Test
- Installing Hardwood Flooring NOFMA - Reference Practice Test
- Missouri Journeyman Electrician License 2017 Practice Test
- Missouri Master Electrician License 2017 Practice Test
- Missouri Residential Journeyman Electrician License 2017 Practice Test
- Missouri Residential Master Electrician License 2017 Practice Test
- National Electrical Code (NEC) 2017 Practice Test
Related Official Resources
Official Sources for Further Details:
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Missouri Office of Statewide Electrical Contractors – Approved Examinations
https://pr.mo.gov/boards/electrical/Approved-Examinations.pdf
Exam Provider / Fee Schedule | Accessed: 2026-09-19 -
NASCLA Electrical Exams – Participating State Agencies
https://www.nascla.org/nascla-electrical-exams-participating-state-agencies
Exam Provider | Accessed: 2026-09-19 -
City of Kansas City – Contractor Licensing
https://www.kcmo.gov/city-hall/departments/city-planning-development/contractor-licensing
Official Board Site | Accessed: 2026-09-19 -
ICC – Kansas City, Missouri Contractor/Trades Examination Information Bulletin
https://iccsafe.org/wp-content/uploads/bulletins/CO_MO-KansasCity.pdf
Exam Provider | Accessed: 2026-09-19 -
ICC – Springfield, Missouri Contractor/Trades Examination Information Bulletin
https://www.iccsafe.org/wp-content/uploads/CO_MO-Springfield.pdf
Exam Provider | Accessed: 2026-09-19 -
City of Springfield – Trade Certification Instructions
https://www.springfieldmo.gov/DocumentCenter/View/904/Trade-Certification-Application-2026-PDF
Official Board Site | Accessed: 2026-09-19 -
City of Columbia – Board of Plumbing Examiners
https://www.como.gov/boards/board-of-plumbing-examiners/
Official Board Site | Accessed: 2026-09-19 -
City of Columbia – Plumbing License Applicant Form
https://www.como.gov/wp-content/uploads/sites/14/2015/06/plumbingapp_fillable.pdf
Fee Schedule / Exam Requirements | Accessed: 2026-09-19 -
City of Independence – Code of Ordinances (Contractor Licensing)
https://librarystage.municode.com/mo/independence/codes/code_of_ordinances?nodeId=CH4BUPLELIN_ART2COLIRE_S4.02.019BOAC
State Statute / Local Ordinance | Accessed: 2026-09-19 -
City of Independence – Contractor License Application Portal
https://apps.indepmo.org/Apps/CommunityDevelopment/Contractor/Application
Official Board Site | Accessed: 2026-09-19 -
City of St. Louis – Construction Industry Contractor Graduated Business License
https://www.stlouis-mo.gov/government/departments/license/business-license-info/Construction-Contracting-Business.cfm
Official Board Site | Accessed: 2026-09-19 -
Missouri DHSS – Lead Licensing Program
https://health.mo.gov/business-professionals/lead-licensing
Official Board Site | Accessed: 2026-09-19 -
Missouri DHSS – How to Become Licensed as a Lead Professional in Missouri
https://health.mo.gov/safety/leadlicensing/definitions.php
Official Board Site | Accessed: 2026-09-19 -
Missouri DHSS – Lead Occupation License Application
https://health.mo.gov/safety/leadlicensing/pdf/5802361leadoccupationinitial.pdf
Fee Schedule / Application Form | Accessed: 2026-09-19 -
Missouri DNR – Well and Pump Installation Contractor Permitting
https://dnr.mo.gov/land-geology/businesses-landowners-permittees/wells-drilling/pump-installation-contractor-permitting
Official Board Site | Accessed: 2026-09-19 -
Missouri DNR – Apprentice Well and Pump Installation Contractor Permit (License)
https://dnr.mo.gov/water/apprentice-well-pump-installation-contractor-permit-license
Official Board Site | Accessed: 2026-09-19 -
Missouri DNR – Permits Needed for Well Driller Businesses
https://dnr.mo.gov/permits-certifications-registrations-licenses/by-business-type/well-driller
Official Board Site | Accessed: 2026-09-19 -
Missouri DNR – Permits Needed for Demolition/Renovation Activities Businesses
https://dnr.mo.gov/permits-certifications-registrations-licenses/by-business-type/demolition-renovation-activities
Official Board Site | Accessed: 2026-09-19 -
Missouri Division of Fire Safety – Elevator Contractor Application for License
https://dfs.dps.mo.gov/documents/forms/MO_815-F0095.pdf
Application Form / Fee Schedule | Accessed: 2026-09-19 -
Missouri CSR – 11 CSR 40-5.175 Elevator Contractor
https://www.law.cornell.edu/regulations/missouri/11-CSR-40-5.175
State Statute | Accessed: 2026-09-19 -
Missouri CSR – 11 CSR 40-5.180 Elevator Contractor License
https://www.law.cornell.edu/regulations/missouri/11-CSR-40-5.180
State Statute | Accessed: 2026-09-19 -
Missouri Division of Fire Safety – Elevator Safety Memorandums
https://dfs.dps.mo.gov/programs/elevator/memos.php
Official Board Site | Accessed: 2026-09-19 -
Missouri DNR – Permits Needed for Roofing Contractor Businesses
https://dnr.mo.gov/permits-certifications-registrations-licenses/by-business-type/roofing-contractor
Official Board Site | Accessed: 2026-09-19 -
Jefferson County, Missouri – Sprinkler Fitter Contractors License Requirements
https://www.jeffcomo.gov/DocumentCenter/View/15991
Fee Schedule / Official Board Site | Accessed: 2026-09-19
Important Disclaimer
Information Currency: This guide reflects licensing information as available in 2026. Licensing requirements are subject to change without notice. Always verify current requirements with official sources.
Official Source: For current information, contact Multiple Authorities – See research notes:
- Website: https://pr.mo.gov
- Phone: 573-522-3280
No Legal Advice: This guide provides general information only. Consult with the licensing board or a qualified professional for guidance specific to your situation.
Local Requirements: Some licensing in Missouri is handled at the city or county level. Always verify requirements with your local building department.