State licensing boards ยท NCSL ยท NASCLA ยท 36 states require licensing

Is your contractor
actually licensed?

Free state-by-state contractor license verification: bond amounts, exam requirements, and official lookup links for 51 states across 20 trades, compiled from state licensing boards, NCSL, and NASCLA across all 50 states and DC (directory snapshot 2026-06-27). Don't sign before you check. See our methodology.

States with licensing
36
Trade types
20
State ร— trade rules
1,020
No state license
15

Data from state licensing boards, NCSL, and NASCLA. Always verify directly with your state's licensing board before signing any contract.

Directory snapshot

15 states list no statewide contractor license in this directory, so the check depends on where the job is. California shows the strictest state licensing score in our board snapshot, and among 115 trade-state rows with a stated surety bond the typical amount is about $17,539.

36
states with โ‰ฅ1 license category
15
no statewide contractor license
$17,539
typical published bond
California
strictest state score

Source: state licensing boards ยท NCSL ยท NASCLA ยท snapshot 2026-06-27. Always look up your state and trade on the live board before you sign.

Coverage tier โ‰  strictness order

According to state licensing boards, California leads the strictness index at #1 (9.5/10) while 6 jurisdictions tie for the broadest trade coverage at 20 of 20 tracked trades; Nevada ranks #2 on strictness among that full-coverage group.

#1
California strictness #1
20
trades at full coverage tier
#2
Nevada strictness among tier
9.5/10
California strictness score

Coverage counts how many of 20 tracked trades carry a statewide license in the directory; strictness is a composite score from exam, bond, insurance, and CE screens. Neither metric is a hiring clearance.

What the directory covers

According to state licensing boards, NCSL, and NASCLA, 36 of 51 jurisdictions require at least one statewide contractor license category across 20 tracked trades; 15 list none.

According to the same board-sourced directory (snapshot 2026-06-27), PlainHireCheck compiles licensing rules for 20 trades across 51 jurisdictions. Electrician is marked licensed in the largest share of states (100%). Surety-bond figures where published run about $10,000 to $500,000. This is a requirements directory, not a live credential check - verify the contractor on the board roster before you sign.

According to state licensing boards, NCSL, and NASCLA, PlainHireCheck compiles more than 1,020 trade-by-state licensing requirements; see our methodology for the full source list.

Jobsite screen gate

Exam ยท Bond ยท Insurance, the three screens boards actually stamp

Across 731 required tradeร—state rows in this snapshot, count how often each hiring screen appears. Only 42 rows (6%) carry the full three-stamp stack.

  1. 328 rows mandate a qualifying exam 45% of licensed rows
  2. 115 rows list a surety bond 16% of licensed rows
  3. 731 rows list a liability floor 100% of licensed rows

Open a board lookup or compare coverage rankings before treating any stamp as current.

License requirements by state

Click any state to open its contractor licensing directory page.

All states โ†’
Licensed trade categories tracked per state (of 20)
Scale: 3โ€“6 6โ€“10 10โ€“13 13โ€“17 17โ€“20
View all 51 states as a list
  1. Arizona: 20
  2. California: 20
  3. Florida: 20
  4. Hawaii: 20
  5. Nevada: 20
  6. Oregon: 20
  7. Washington: 19
  8. Alabama: 18
  9. District of Columbia: 18
  10. Louisiana: 18
  11. Massachusetts: 18
  12. New Mexico: 18
  13. North Carolina: 18
  14. Virginia: 18
  15. Connecticut: 17
  16. New Jersey: 17
  17. South Carolina: 17
  18. Tennessee: 17
  19. Utah: 17
  20. Alaska: 16
  21. Maryland: 16
  22. Michigan: 16
  23. Mississippi: 16
  24. Rhode Island: 16
  25. Arkansas: 15
  26. Georgia: 15
  27. Minnesota: 15
  28. Oklahoma: 15
  29. Kentucky: 14
  30. Maine: 14
  31. New Hampshire: 14
  32. Vermont: 13
  33. West Virginia: 13
  34. Delaware: 12
  35. Montana: 12
  36. North Dakota: 10
  37. Texas: 8
  38. Idaho: 6
  39. Wisconsin: 6
  40. Colorado: 5
  41. Missouri: 5
  42. New York: 5
  43. Ohio: 5
  44. Pennsylvania: 5
  45. Illinois: 4
  46. Iowa: 4
  47. Nebraska: 4
  48. South Dakota: 4
  49. Indiana: 3
  50. Kansas: 3
  51. Wyoming: 3

States ranked by licensed trade categories

Top jurisdictions by how many of the 20 trades carry a statewide license

Source: NASCLA & state licensing boards As of 2026-06-27

1. Arizona202. California203. Florida204. Hawaii205. Nevada206. Oregon207. Washington198. Alabama18

Trades ranked by share of states that license them

Breadth of statewide licensing across the 20 tracked trades

Source: State licensing boards, NCSL, NASCLA As of 2026-06-27

1. Electrician100%2. Pest Control100%3. Plumber92.2%4. HVAC Technician78.4%5. Carpenter70.6%6. Demolition70.6%7. Elevator Mechanic70.6%8. Excavation70.6%

Strictness vs. consumer friendliness, state by state

A stricter licensing regime (exams, experience, fees) is not automatically a more consumer-protective one (bonding, insurance, a working complaint path). Plotting 10 states on both scores separates jurisdictions that are hard to get licensed in from jurisdictions that actually protect the hiring consumer, the median splits below are the read: 8.5 strictness, 8.3 consumer-friendliness.

Median split: 8.5 strictness, 8.3 consumer-friendliness, across 10 states. 2ร—2 strategic matrix plotting 10 entities by Strictness score (X) and Consumer-friendliness score (Y), with a crosshair dividing the plot into four quadrants. Strict and protectiveProtective, low-barrierStrict, low protectionLow barrier, low protection 678910 77.588.599.510 Strictness score Consumer-friendliness score Licensing strictness vs. consumer-friendliness score CaliforniaNevadaArizonaFloridaNorth CarolinaVirginiaMassachusettsOregonWashingtonMinnesota
Median split: 8.5 strictness, 8.3 consumer-friendliness, across 10 states.

Source: PlainHireCheck strictness/consumer-friendliness composite indices As of 2026-06-27

State strictness vs consumer-friendliness table: California, strictness 9.5, consumer-friendliness 9.5. Nevada, strictness 9.3, consumer-friendliness 9.2. Arizona, strictness 9.1, consumer-friendliness 9. Florida, strictness 8.8, consumer-friendliness 8.5. North Carolina, strictness 8.5, consumer-friendliness 7.3. Virginia, strictness 7.9, consumer-friendliness 7.5. Massachusetts, strictness 7.5, consumer-friendliness 7.5. Oregon, strictness 7.3, consumer-friendliness 8.3. Washington, strictness 7.2, consumer-friendliness 8. Minnesota, strictness 7, consumer-friendliness 7.8.

Hiring checks from consumer advocates

Registry-style reminders before and during a contractor project, always confirm live board status separately.

1

Always Verify a License Before Hiring

Before signing any contract, verify the contractor's license on your state licensing board website. License lookup tools are free and take less than a minute. Never accept a license number without verifying it yourself.

2

Get At Least Three Written Bids

Always get at least three written bids for any project over $1,000. Bids should be itemized and specify materials, labor, timeline, and payment schedule. Beware of bids significantly lower than others.

3

Check Insurance Separately from Licensing

A contractor can be licensed but uninsured. Ask for a Certificate of Insurance (COI) naming you as additional insured. Verify it is current by calling the insurer. Both general liability and workers' compensation are important.

4

Never Pay More Than 10-30% Upfront

Be cautious of contractors demanding large upfront payments. A typical schedule: 10-30% down, incremental payments as work progresses, and 5-10% retained until completion and inspection.

5

Get Everything in Writing Including Change Orders

A detailed written contract protects you. It should include scope of work, materials, timeline, payment schedule, and warranty terms. Any changes must also be in writing as change orders.

6

Check the Contractor Complaint History

Most state licensing boards show complaint history and disciplinary actions. Ongoing unresolved complaints are a red flag. Also check the BBB and Google Reviews.

Disclaimer: PlainHireCheck provides publicly available state licensing data for informational purposes only. Always verify contractor credentials directly with your state's licensing board before hiring. License requirements and fee amounts change; this directory snapshot is dated 2026-06-27.

Frequently Asked Questions

What is the difference between a licensed and unlicensed contractor?

A licensed contractor has met state-specific requirements including education, experience, exams, and background checks. They carry required insurance and bonds. An unlicensed contractor has met none of these requirements. Hiring an unlicensed contractor may void your homeowner's insurance, expose you to liability if a worker is injured, and leave you with no legal recourse for defective work.

Does a license guarantee quality work?

No. A license means the contractor met minimum standards at the time of licensing. Always check reviews, ask for references, and see past project photos. However, a licensed contractor provides legal protections that an unlicensed contractor does not.

What is a contractor bond and why does it matter?

A contractor bond (surety bond) is a three-party agreement between the contractor, a bonding company, and you. If the contractor fails to complete a job or causes damage, you can make a claim against the bond. Bonds typically have limits ($5K-$100K) โ€” they are a baseline protection, not comprehensive coverage.

What is contractor liability insurance?

General liability insurance covers property damage and bodily injury caused by the contractor. Always ask for a Certificate of Insurance showing at least $500,000-$1,000,000 in general liability coverage.

What is workers compensation and why do I care?

Workers' compensation covers contractors and their employees if injured on your property. Without it, an injured worker could potentially sue you as the property owner. Always verify workers' comp coverage before work begins.

Can I hire an unlicensed contractor to save money?

The risks are significant: work may not pass inspection, homeowner's insurance may deny claims, you could be liable for injuries, and you have limited legal recourse. Where contractor licensing is required by law, hiring unlicensed is also illegal.

About this data

How PlainHireCheck works, and why you can trust these numbers

What this site is

PlainHireCheck is a free reference for contractor licensing requirements across 20 trades and all 50 states plus Washington D.C. We are an independent information portal; we do not recommend specific contractors, accept advertising from contractors or licensing schools, or hold financial relationships with any licensing board or trade association.

Editorial process

  1. Source. Research each state licensing board's official website for every one of the 20 trade categories, cross-checked against National Conference of State Legislatures (NCSL) and NASCLA state-by-state surveys.
  2. Verify. Document the license type, issuing authority, exam requirements, bond and insurance minimums, and continuing-education rules exactly as published by the state board, then date-stamp the record.
  3. Publish. Build a per-state, per-trade page linking directly to the state's official license verification lookup tool so readers can audit our record against the original source.

Editorial independence & corrections

The PlainHireCheck is independent and accepts no payment, sponsorship, or promoted placement from any contractor, licensing school, or trade association. Found an error or a stale requirement? File a correction via the contact page; we respond within 72 hours and publish corrections with a visible revision note. See our methodology for full source attribution and refresh cadence.

Frequently asked

What is the difference between a licensed and unlicensed contractor?

A licensed contractor has met state-specific requirements including education, experience, exams, and background checks. They carry required insurance and bonds. An unlicensed contractor has met none of these requirements. Hiring an unlicensed contractor may void your homeowner's insurance, expose you to liability if a worker is injured, and leave you with no legal recourse for defective work.

Does a license guarantee quality work?

No. A license means the contractor met minimum standards at the time of licensing. Always check reviews, ask for references, and see past project photos. However, a licensed contractor provides legal protections that an unlicensed contractor does not.

What is a contractor bond and why does it matter?

A contractor bond (surety bond) is a three-party agreement between the contractor, a bonding company, and you. If the contractor fails to complete a job or causes damage, you can make a claim against the bond. Bonds typically have limits ($5K-$100K) โ€” they are a baseline protection, not comprehensive coverage.

What is contractor liability insurance?

General liability insurance covers property damage and bodily injury caused by the contractor. Always ask for a Certificate of Insurance showing at least $500,000-$1,000,000 in general liability coverage.

What is workers compensation and why do I care?

Workers' compensation covers contractors and their employees if injured on your property. Without it, an injured worker could potentially sue you as the property owner. Always verify workers' comp coverage before work begins.

Can I hire an unlicensed contractor to save money?

The risks are significant: work may not pass inspection, homeowner's insurance may deny claims, you could be liable for injuries, and you have limited legal recourse. Where contractor licensing is required by law, hiring unlicensed is also illegal.

Download the jurisdiction snapshot (same CSV as /statistics): contractor-licensing-statistics.csv (CC BY 4.0).