Finds that on-going competent operation, monitoring, and maintenance of an on-site sewage disposal system is necessary for the protection of the consumers' health and the environment, and therefore it is of vital interest to the public.

Finds that to protect the public health and conserve and protect the water resources of the state, it is necessary to require the examination and certification of the persons responsible for providing technical maintenance of such systems and to provide for the adoption of rules to carry out this act.

Requires the director to adopt rules as necessary for the administration of a system to certify persons who provide, for a fee, operation, monitoring, and maintenance services for on-site sewage disposal systems. The rules must include provisions establishing minimum qualifications and procedures for the certification of on-site sewage system maintenance service providers and criteria for determining the kind and nature of continuing educational requirements for renewal of certification, if any.

Authorizes the department to establish different levels of certification for maintenance service providers that account for varying levels of system complexity or geographical requirements due to soil types or other conditions.

Provides that any person violating a provision of this act may be fined up to two hundred fifty dollars per day.

Directs the department to adopt rules for carrying out the provisions of this act in accordance with chapter 34.05 RCW.

Requires that the department shall develop the rules required to implement this act with the advice of a committee composed of members from agencies, professions, organizations, and individuals having knowledge and interest in on-site sewage system operation, monitoring, and maintenance.