Prohibits the department of natural resources from entering into a new lease, renew or extend an existing lease, or other use authorization where the use includes marine finfish aquaculture of Atlantic salmon or other nonnative finfish.

Prohibits the department of fish and wildlife and the department of ecology from authorizing or issuing a permit for a new activity that involves the marine finfish aquaculture of Atlantic salmon or other nonnative finfish.

Requires the department of ecology, the department of natural resources, and the department of fish and wildlife to continue the existing effort to update guidance and informational resources to industry and governments for planning and permitting commercial marine net pen aquaculture.