The purpose of this chapter is to implement RCW 18.29.220 and 18.32.226. These laws are intended to improve access to dental care for low-income, rural, and other at-risk children by enhancing the authority of dental hygienists and dental assistants to provide dental sealant and fluoride varnish treatments in school-based and school-linked programs. The department encourages partnerships within geographical regions and among participants in the oral health care community in implementing this law.