Arizona Plumber Licensing

• Specialty Commercial C-37 This classification allows the licensee to install, alter, and repair all plumbing when performed solely within property lines and not on public easements or rights-of-way, except as hereinafter provided
• Specialty Dual License CR-37 This classification allows the scopes of work permitted by the commercial C-37 Plumbing and the residential R-37R Plumbing licenses.
• Specialty Residential R-37 Installation and repair of water and gas piping systems, fire protection systems, and sewage treatment systems. Included are all fixtures, vents, and devices common to the industry, as well as solar applications. This scope includes all C-37R sub-classifications.

Q: How do I get my plumbing license in Arizona?

1. Meet experience requirements
   • You must have four years of documented experience in the plumbing trade to apply. The most common method of gaining experience is through an apprenticeship program. You can also work under the supervision of a licensed plumber you find on your own.
2. Sit for two exams: business and law and the trade.
3. Pay the $120 exam fee
4. Apply for the C-37 or L-37 license.
5. Obtain the appropriate bond & workers compensation.
   • (Commercial)
     • If your Estimated Annual Volume (Per License Category) is less than $150,000 your current bond will need to be $2,500
     • If your Estimated Annual Volume (Per License Category) is $150,000 or more but less than $500,000 your bond as of July 1st 2014 will be $7,000
     • If your Estimated Annual Volume (Per License Category) is $500,000 or more  but less than $1,000,000 your bond as of July 1st 2014 will be $17,500
     • If your Estimated Annual Volume (Per License Category) is $1,000,000 or more but less than $5,000,000 your bond as of July 1st 2014 will be $25,000
     • If your Estimated Annual Volume (Per License Category) is $5,000,000 or more but less than $1,000,000 your bond as of July 1st 2014 will be $37,500
   • Must carry a Bond (Residential)
     • If your Estimated Annual Volume (Per License Category) is less than $100,000 your bond as of July 1st 2014 will be $4,250
     • If your Estimated Annual Volume (Per License Category) is $100,000 or more but less than $375,000 your bond as of July 1st 2014 will be $4,250
     • If your Estimated Annual Volume (Per License Category) is $375,000 or more your bond as of July 1st 2014 will be $25,000

Q: Who issues the Arizona plumbing license?