what can you do with a D-38 license in California for pressure washing

What Can You Do With a D-38 Sand and Water Blasting License?

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In this article, we are going to take a look at what you can do with the C-61/D-38 Sand and Water Blasting License.

The C-61/D-38 license for Sand and Water Blasting is one of 73 contractor license classifications available in California. Contractors in the state of California are governed by the CSLB (Contractors State License Board)

There are 4 major classification categories:

Commonly referred to as the “D-38 license“, this classification falls under the C-61 Contractor license category.

For licenses under this category, there is no trade examination.

What can I do with a C-61/D-38 License?

Contractors that hold this license typically specialize offer a service that involves pressure washing.

Typical services include:

  • Pressure washing walkways, sidewalks, garbage stalls, and windows
  • Surface preparation for new coatings
  • Strip paint, corrosion or rust
  • Graffiti and Rust removal
  • Concrete aggregate exposer
  • Sand Blasting for construction
  • Industrial abrasive blasting
  • Surface revitalization
  • Cleaning building exteriors
  • Water Blasting
  • Pressure washing and Blasting
  • Pressure cleaning
  • Window cleaning
  • Parking Lot sweeps
  • Water Reclamation
  • Steam washing for oil stain removal, artificial glass cleaning, solar panel cleaning
  • Specialized Cleaning / Window and Gutter cleaning
  • Power washing for Gas stations, shopping centers, grocery stores, signage, gum removal, rust and battery acid

Related Licenses for D-38 pressure washing contractors

Some contractors want to expand their services and get additional licensing. 

The most common pairing for the D-38 license would be:

Adding on additional license classifications largely depends on the direction you are trying to go with your business.

In some cases, a client may request that you hold a particular classification to fulfill an insurance requirement prior to beginning a project.

Water Reclamation 

A common question we get from contractors that specialize in pressure washing is about water reclamation. Companies that are adding chemicals to the water they are using to wash surfaces are required to prevent that water from entering the sewer and potentially polluting the environment.

Recycling water also prevents pollution by decreasing the amount of wastewater that must be discharged. 

To learn more about California's water reclamation laws, California State Water Control Board.

what can you do with a C-61/D-38 sand and water blasting contractor license for pressure washing in California

California Contractor License Requirements

To get a C-61/D-38 license you must meet the following basic requirements:

  • 18 Years of Age
  • 4 Years of Journeyman Level Experience
  • Social Security or ITIN #
  • Not Currently on Probation or Parole
  • Signature from a licensed contractor, fellow employee, supervisor, or business associate 

In addition, you must also pass a California Law & Business Examination

California Contractors License Test

California contractors looking to get their C-61/D-38 license will be tested on the following areas:

1. Business Organization (10%) 

  • Company organization 
  • Project organization

2. Business Finances (15%) 

  • Cash management 
  • Budget and planning
  • Taxes Financial reporting

3. Employment Requirements (12%) 

  • Employment regulations 
  • Evaluation and record-keeping
  • Payroll

4. Bonds, Insurance, and Liens (10%) 

  • Bonds 
  • Workers’ compensation insurance 
  • Liens and other remedies
  • Other insurance

5. Contract Requirements and Execution (23%) 

  • Bidding 
  • Cost control
  • Contracts
  • Payments

6. Licensing Requirements (8%) 

  • Business license 
  • Contractor’s license
  • Activity regulation

7. Safety (15%) 

  • Training and reporting requirements 
  • General safety
  • Hazardous/unknown materials

8. Public Works (7%) 

  • Prevailing wage requirements 
  • Bonding requirements
  • Insurance requirements

What's the exam process like?

The exam will be:

  • 115 Questions
  • Multiple Choice
  • Closed Book
  • 3 Hours to Complete
  • Taken via Computer at a CSLB Testing Facility
  • Exam Centers in: Berkeley, Fresno, Norwalk, Oxnard, Sacramento, San Bernardino, San Diego, and San Jose

What kind of math skills do I need?

When it comes to the California contractor license test. You will want to make sure that your math skills are up to par. 

It is important to remember that this is a law examination in which questions will be presented to you as if you are a General Building Contractor with multiple projects running simultaneously.

You can expect math questions related to:

  • Arithmetic
  • Cost Estimation 
  • Calculating Square Footage
  • Units of Measurement
  • Percentages and Decimals

Preparing for Your CSLB license exam

Our complete course will break down all of the essential knowledge you must know to be successful on your CSLB law & business examination.

In addition to passing your exam, you will also be equipped with valuable knowledge that will give you a crash course in how to run a contracting business effectively and profitably. Learn everything you need to know not only to pass your exam but also how to run a profitable business.

You will learn:

  • Company organization 
  • How to bid effectively
  • Understanding cost control
  • Various contract types
  • Cash management
  • Estimation fundamentals
  • Business Structures
  • Worker’s Compensation and Taxes
  • Insurance Types in Construction
  • Labor Laws and Employee Rights
  • Hiring and Firing Practices
  • Contractor Bonds
  • Mechanics Liens
  • State Laws and Statutes
  • Project Management 101
  • Prevailing Wages and Public Works
  • And Much More!