Certificates of competency - System Designer or Professional Engineer

A septic system Designer or Professional Engineer analyzes the property and the soil to determine the appropriate type of septic system. This includes written plans, construction observation and submission of applications for permit approval or release.

Washington State Department of Licensing (DOL) administers licenses for designers and professional engineers.

All information is general in nature and is not intended to be used as a substitute for appropriate professional advice. For more information, please call 206-296-4600 (voice) or TTY Relay: 711 or toll-free, 800-325-6165. Mailing address: 401 5th Ave., Suite 1300, Seattle, WA 98104 or click here to email us. Because of confidentiality concerns, questions regarding client health issues cannot be responded to by e-mail. Please read the Notice of Privacy Practices. For more information, contact the Public Health Privacy Office at 206-263-8255.

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