The proposed bill establishes restrictions on the sale of over-the-counter diet pills and dietary supplements aimed at weight loss or muscle building to individuals under 18 years of age. It introduces a new chapter in Title 69 RCW, defining key terms such as "delivery sale," "delivery seller," and "dietary supplements for weight loss or muscle building." The bill prohibits any person from selling or giving away these products to minors and mandates that retail establishments verify the age of purchasers by requiring valid identification. Additionally, it outlines the acceptable forms of identification and stipulates that individuals who appear to be at least 25 years old are not required to show ID, although this does not serve as a defense against selling to minors.

Furthermore, the bill imposes penalties for violations, allowing the attorney general to investigate and enforce compliance. Retailers and delivery sellers must ensure that any delivery of these products to consumers requires a signature from an adult over 18, along with proof of age. The bill also details the criteria for determining whether a product is marketed for weight loss or muscle building, which includes examining its ingredients and marketing claims. Overall, the legislation aims to protect minors from potentially harmful dietary products while establishing clear guidelines and penalties for compliance.