OLYMPIA— Proposed legislation focusing on e-cigarettes and other vapor inhalation products would tighten the state’s control over the legal smoking age, labeling and advertising requirements and retailer licensing.

House Bill 1645 takes a holistic approach to vapor-product regulation, according to prime sponsor Rep. Gerry Pollet, D-Seattle, who says this is the first comprehensive e-cigarettes bill in the United States.

“We are facing a burgeoning public health crisis with e-cigarettes and we need to approach it as a public health issue and provide people with an understanding of sa...