Authorizes a county to impose an additional regular property tax levy in an amount equal to ten cents or less per thousand dollars of the assessed value of property in the county in accordance with certain terms.

Allows the tax proposition to be submitted at a general or special election.

Allows the tax to be imposed each year up to ten consecutive years when specifically authorized by the registered voters voting on the proposition, subject to certain conditions.

Requires any tax imposed under the act to be used exclusively for funding public health services under RCW chapter 70.05 (local health departments, boards, officers--regulations), 70.08 (combined city-county health departments), or 70.46 (health districts).