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Because of the high number of applications, they take up to 8 weeks to process. If it’s been longer, contact us.
 

On-Site Wastewater Designers License by Exam

All applicants are required to take the On-Site Wastewater Treatment Systems Designers exam. To be considered for approval you must submit a complete application to the board office.

You aren't required to get an on-site designer license if you are:

• A licensed professional engineer
• An employee or subordinate working under the direct supervision of a licensed designer or professional engineer.
   

Application Requirements

• A high school diploma or equivalent
• At least 4 years of experience showing increased responsibility as defined in WAC 196-32-020  
• A passing score on the Washington On-Site Designer/Inspector Law Review
• Pay application fee
   

Required Documentation

• Submit your application and a completed Washington On-Site Designer/Inspector Law Review
  • Law Reviews received prior to application will not be accepted
• Submit the On-Site Wastewater Treatment Systems Designer Experience Verification form (see form for instructions)
  • A minimum of 2 verifications are required
     

How to Apply