A. "Approved" means accepted in writing by the Health Officer and, where required, by the Washington State Department of Social and Health Services (DSHS).

B. "Board of Health" means the Tacoma-Pierce County Board of Health as established pursuant to RCW 70.05.

C. "Certificate of competency" means a certificate to engage in specific work indicated by the certification as granted by the Tacoma-Pierce County Health Department and to be defined in the Board of Health Rules and Regulations.

D. "Department" means the Tacoma-Pierce County Health Department.

E. "Health Officer" means the Director of the Tacoma-Pierce County Health Department or his/her authorized representative.

F. "On-site sewage disposal system" means any system of piping, treatment devices, or other facilities that convey, store, treat, or dispose of sewage on the property where it originates or an adjacent or nearby property under control of the user where the system is not connected to a public sewer system.

G. "Person" means any individual, corporation, company, association, society, firm, partnership, joint stock company, or any branch of federal, state, or local government.

H. "Sewage" means the water-carried human or domestic waste from residences, buildings, industrial establishments or other facilities, together with such ground water infiltration, that may be present.

I. "WAC 248-96" means Washington Administrative Code Chapter 248-96; the Washington State Board of Health Rules and Regulations for on-site sewage disposal.