Prohibits, beginning January 1, 2022, a person from manufacturing, knowingly selling, offering for sale, distributing for sale, or distributing for food packaging to which perfluoroalkyl and polyfluoroalkyl chemicals have been intentionally added in any amount. This prohibition takes effect only after the requirements below are completed.

Requires the department of ecology to: (1) Identify that safer alternatives are available, and the safer alternative determination is supported by feedback from an external peer review of the department's alternatives assessment; and

(2) Publish its findings in the Washington State Register on whether a safer alternative exists.

Requires a manufacturer to develop, for food packaging, a compliance certificate by the date of a prohibition taking effect.