Also from Page 4 of the current WDFW regs:

It is lawful to possess Canadian-origin fish or
shellfish if you have a Canadian license and
salmon conservation stamp (for salmon),
except it is unlawful to possess Canadian-origin
yelloweye or canary rockfish.


I will also add that the regs make it illegal to stop and fish in an area with fish aboard that are illegal to retain in that area (although they (species and numbers retained) may have been caught in an area otherwise legal).
_________________________
Remember to immediately record your catch or you may become the catch!

It's the person who has done nothing who is sure nothing can be done. (Ewing)