Prohibits a producer of plastic packaging, beginning January 1, 2022, from selling, offering for sale, or distributing plastic packaging for use in the state unless the producer is participating in a plastic packaging stewardship organization with a plan approved by the department of ecology.

Requires each producer, by June 1, 2021, to ensure that a plan is submitted on its behalf to the department of ecology by a stewardship organization.

Exempts retailers that are not producers from the requirements of this act.

Allows the department of ecology to administratively impose a civil penalty on a person who violates this act in an amount of up to one thousand dollars per violation per day.

Creates the responsible plastic packaging stewardship account.