C-37 Plumbing
Official Work Description
This classification allows the licensee to install, alter, and repair all plumbing when performed solely within property lines and not on public easements or right-of-ways, except as hereinafter provided
This classification also allows the licensee to perform installation, alteration, and repair of all piping, fixtures, and appliances related to water supply, including pressure vessels and tanks (excluding municipal or related water supply systems); venting and sanitary drainage systems for all fluid, semifluid, and organic wastes; septic tanks and leaching lines; roof leaders; lawn sprinklers; water conditioning equipment; piping; and equipment for swimming pools.
Also included are piping, fixtures, appliances, and pressure vessels for manufactured and natural gases, compressed air and vacuum systems, petroleum, fuel oil, non-potable liquids, hot water heating, and hot water supply systems operating at pressures not exceeding 30 PSIG, or temperatures not exceeding 220° F; steam heating and steam supply systems not exceeding 15 PSIG operating pressure; gas or oil fired space heaters and furnaces, excluding duct work. Piping for water cooling systems, excluding the refrigerant piping and equipment. Testing and balancing of hydronics systems.
Sewer, gas, water lines, and connections from structure to the nearest point of public supply or disposal may cross public or private easements or be installed within private easements or right-of-ways. Pipe installed across public property may not be increased in size, or make any other connection between the point of exit from private property to the point of connection at public supply or disposal. These lines shall not be installed parallel to main lines in public easements or right-of-ways.
Experience Requirement & Documentation
The qualifying party must show at least 4 years of experience in the trade or classification being requested in a supervisory capacity.
Experience documentation may include employment history, self employment history, college degree in construction management, or out of state trade exam waiver.
Tests Required
Applicants for this license must pass the required trade exam and the Arizona Statutes and Rules exam.
| Required Test | Provider | Passing Score | Questions | Reference Books | Preparation |
|---|---|---|---|---|---|
| AZ Arizona Statutes and Rules | PSI Exams | 70% | 50 Multiple Choice | Open Books | Sign Up |
| C-37 (CR-37) Plumbing (Commercial) | PSI Exams | 70% | 100 Multiple Choice | Open Books | Sign Up |
Steps to Get the License
Confirm the Correct Classification
Make sure the C-37 Plumbing license matches the work your company plans to perform.
Prepare for the Required Exams
Study for the trade exam and Arizona Statutes and Rules exam.
Pass Your Exams
Complete the required exams through the approved testing process.
Let Us Handle the Rest: Company Setup, Tax Registrations, Bonds, and Application Filing
We can take care of your company formation, EIN and Arizona tax registration, contractor license bond, and filing of your Arizona contractor license application, so you can stay focused on building your business.
Protect and Support Your Business: Insurance and Payroll Services
Our in-house team can help you secure contractor insurance coverage and set up payroll services, giving you the tools and support you need to operate your business.
Company Setup Options
Before applying for your Arizona contractor license, you may need to establish a legal business entity. We can help you form your company and obtain the required registrations, including your EIN and Arizona tax accounts.
| Entity Type | Best For | Estimated Total | Action |
|---|---|---|---|
| Arizona Domestic Corporation | Are you ready to establish your corporation in the state of Arizona? Here's what we offer: Corporation Formation, Expedited Service, Publication (if required), Free Statutory Agent Services for the First Year, and Corporate Binder. All for an affordable price of $495 (Maricopa and Pima Counties), all other counties will be $600. | $495+ | Form My Arizona Domestic Corporation |
| Arizona Domestic Corporation | Are you ready to establish your corporation in the state of Arizona? Here's what we offer: Corporation Formation, Expedited Service, Publication (if required), Free Statutory Agent Services for the First Year, and Corporate Binder. All for an affordable price of $495 (Maricopa and Pima Counties), all other counties will be $600. | $495+ | Form My Arizona Domestic Corporation |
| Arizona Domestic Corporation | Are you ready to establish your corporation in the state of Arizona? Here's what we offer: Corporation Formation, Expedited Service, Publication (if required), Free Statutory Agent Services for the First Year, and Corporate Binder. All for an affordable price of $495 (Maricopa and Pima Counties), all other counties will be $600. | $600+ | Form My Arizona Domestic Corporation |
| Arizona Domestic Limited Liability Company | Are you ready to establish your limited liability company (LLC) in the state of Arizona? Here's what we offer: LLC Formation, Expedited Service, Publication (if required), Free Statutory Agent Services for the First Year, and LLC Binder. All for an affordable price of $495. | $495+ | Form My Arizona Domestic Limited Liability Company |
| Arizona Domestic Limited Liability Company | Are you ready to establish your limited liability company (LLC) in the state of Arizona? Here's what we offer: LLC Formation, Expedited Service, Publication (if required), Free Statutory Agent Services for the First Year, and LLC Binder. All for an affordable price of $495. | $495+ | Form My Arizona Domestic Limited Liability Company |
| Arizona Domestic Limited Liability Company | Are you ready to establish your limited liability company (LLC) in the state of Arizona? Here's what we offer: LLC Formation, Expedited Service, Publication (if required), Free Statutory Agent Services for the First Year, and LLC Binder. All for an affordable price of $495. | $495+ | Form My Arizona Domestic Limited Liability Company |
| Arizona Sole Proprietorship | Are you ready to establish your company name in the state of Arizona? Here's what we offer: Reserve the company trade name for five years under your personal name. All for an affordable price of $20. A sole proprietorship is the simplest form of business structure, owned and operated by a single individual. In a sole proprietorship, the business and the owner are considered the same legal entity, and there is no legal distinction between the two. This means that the owner has complete control over the business and is personally responsible for its debts and liabilities. | $20+ | Form My Arizona Sole Proprietorship |
| Arizona Foreign Corporation | Are you ready to establish your foreign corporation in the state of Arizona? Here's what we offer: Expedited Filing for a Foreign Corporation, Publication (if required), Free Statutory Agent Services for the First Year, and Corporate Binder. All for an affordable price of $775. Additional fees for certified articles and a certificate of good standing may be required, depending on your domicile state. A foreign corporation, refers to a company that is incorporated in one state jurisdiction but operates in another. In this context, 'foreign' simply means outside the jurisdiction where the corporation was originally established. | $775+ | Form My Arizona Foreign Corporation |
| Arizona Foreign Limited Liability Company | Are you ready to establish your foreign limited liability company in the state of Arizona? Here's what we offer: Foreign LLC Formation, Expedited Service, Publication (if required), Free Statutory Agent Services for the First Year, and Company Binder. All for an affordable price of $495. Additional fees for a certificate of good standing may be required, depending on your domicile state. A foreign limited liability company refers to a company that is organized in one state jurisdiction and operates in another. In this context, 'foreign' simply means outside the jurisdiction where the limited liability company was originally established. | $495+ | Form My Arizona Foreign Limited Liability Company |
| Arizona Trust | We do not setup trusts in Arizona, but we can refer you to an attorney that can. | $+ | Form My Arizona Trust |
| Arizona Partnership | We do not setup partnerships and discourage contractors from setting up a partnership for licensing purposes. | $+ | Form My Arizona Partnership |
| Arizona Parent-Owned DBA | Are you ready to establish your doing business as (DBA) trade name in the state of Arizona? Here's what we offer: Reserve the company trade name for five years, under your existing LLC or Corporation. All for an affordable price of $20. | $+ | Form My Arizona Parent-Owned DBA |
| Arizona Domestic Close Corporation | $+ | Form My Arizona Domestic Close Corporation | |
| Domain Name | These are internet specific names that are reserved with godaddy or similar domain name host companies. | $+ | Form My Domain Name |
| Arizona Professional Limited Liability Company | $+ | Form My Arizona Professional Limited Liability Company |
Pricing is an estimate and may vary depending on state filing fees, publication requirements, expedited processing, and any additional tax registrations.
Estimated Cost Breakdown
| Item | Fee Type | Estimated Cost |
|---|---|---|
| Trade Test Preparation Course | Our Fee | $300 |
| Trade Test PSI Fee | State Fee | $66 |
| Statutes & Rules Course and Exam | State Fee + Our Fee | $125 |
| C-37 PLUMBING State License 2 Year Fee | State Fee | $580 |
| License Bond Fee ($2,500 2 Years) | Bond Fee | $88 |
| Application Preparation Fee | Our Fee | $250 |
| Postage & Handling Fee | Our Fee | $25 |
| Estimated Total | $1,434.00 | |
Fees are estimates and may change. Actual costs may vary depending on license type, bond amount, entity structure, and state requirements.
License Bond Requirement
Arizona contractors are required to post a contractor license bond. The bond amount depends on the license classification and anticipated gross volume.
For this example, the estimated bond premium is based on a $2,500 bond and contemplated gross volume of $150,000 or less.
Quick Facts
Timeline to Get Licensed
Week 1 to 2: Enroll, Study, and Pass Exams
Sign up for your test preparation course, begin studying for the required exams, and complete the trade exam and Arizona Statutes and Rules exam.
Weeks 3 to 4: Set Up Your Company, Obtain Bond, and File Your Application
Form your business entity, obtain your EIN and state tax number, secure the required contractor license bond, complete background checks, and prepare and submit your Arizona Registrar of Contractors application with all supporting documents.
Weeks 4 to 6: Receive Your License
Once approved by the Arizona Registrar of Contractors, you are ready to legally contract under your new license.
Related License Classifications
| Classification | Description | Learn More |
|---|---|---|
| C-41 Septic Tanks And Systems | This classification allows the licensee to excavate, install and repair pipe, backfill, and compact soil as required for the licensee to install and repair: |
View License |
| C-3 Awnings And Canopies | This classification allows the licensee to place concrete footings and concrete slabs as required for the licensee to install and repair: This classification does not allow the licensee to install or repair electrical, plumbing, or air conditioning systems. |
View License |
License Frequently Asked Questions
What does an Arizona C-37 PLUMBING license allow me to do?
This classification allows the licensee to install, alter, and repair all plumbing when performed solely within property lines and not on public easements or right-of-ways, except as hereinafter provided
This classification also allows the licensee to perform installation, alteration, and repair of all piping, fixtures, and appliances related to water supply, including pressure vessels and tanks (excluding municipal or related water supply systems); venting and sanitary drainage systems for all fluid, semifluid, and organic wastes; septic tanks and leaching lines; roof leaders; lawn sprinklers; water conditioning equipment; piping; and equipment for swimming pools.
Also included are piping, fixtures, appliances, and pressure vessels for manufactured and natural gases, compressed air and vacuum systems, petroleum, fuel oil, non-potable liquids, hot water heating, and hot water supply systems operating at pressures not exceeding 30 PSIG, or temperatures not exceeding 220° F; steam heating and steam supply systems not exceeding 15 PSIG operating pressure; gas or oil fired space heaters and furnaces, excluding duct work. Piping for water cooling systems, excluding the refrigerant piping and equipment. Testing and balancing of hydronics systems.
Sewer, gas, water lines, and connections from structure to the nearest point of public supply or disposal may cross public or private easements or be installed within private easements or right-of-ways. Pipe installed across public property may not be increased in size, or make any other connection between the point of exit from private property to the point of connection at public supply or disposal. These lines shall not be installed parallel to main lines in public easements or right-of-ways.
How much experience is required?
Applicants generally need at least 4 years of qualifying experience for this classification.
What exams are required?
You will typically need to pass the AZ Arizona Statutes and Rules exam and the C-37 (CR-37) Plumbing (Commercial) exam.
How much does the Arizona C-37 PLUMBING license cost?
Costs may include test preparation, testing fees, state license fees, background checks, bond costs, application processing, and company setup fees if needed.
Can Arizona Contractor License Center help with the full licensing process?
Yes. We can help with test preparation, company setup, EIN and tax registrations, bonds, application filing, insurance, and payroll services.
Ready to Get Your Arizona Contractor License?
From test preparation to company setup, bonds, application filing, insurance, and payroll, our team can guide you through every step of the licensing process.