Exempt services: On-site wastewater design professionals

Due to facility issues, this licensing program has limited operations. There may be delays in responding to requests. We apologize for the inconvenience. We’re working toward resuming all business operations as soon as possible.

State laws recognize that certain areas of expertise are common to professionals other than on-site designers and inspectors. They provide the following exemptions in RCW 18.210.150: Persons exempt from licensure:

Professional engineer

A licensed professional engineer isn’t required to be licensed in as an on-site wastewater design professional if he or she performs the design work in accordance with Title 196 WAC.

Employees of a professional licensee

An employee or a subordinate of a licensed professional engineer or on-site wastewater design professional isn’t required to be licensed as an on-site wastewater design professional if the work is:

  • Performed under the direct supervision of the engineer or on-site wastewater design professional.
  • and
  • Doesn’t include final design decisions.

Questions?

Contact us: DFCcompliance@dol.wa.gov

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