hrenya, what answer do you want to hear?
The laws are coarsely written so there are many loopholes. You can choose to fish based on the strict letter of the regulation or you can choose to fish ethically.
You can't catch chinook from shore in the Richmond/Steveston area so ethically you shouldn't fish for them. The lower Fraser is open to selective fishing for chinooks so you are allowed to fish for them, even though you will only catch closed species.
Rod said he will clarify the regulation around, but the answer should be that C&R of closed species is allowed.
Similarly, there is nothing in the regulations stopping someone from C&Ring 100 pinks in the Squamish River a few weeks ago, but logically it is not a good thing for the fish stocks (and can't be that much fun after 30 fish).
If you want to catch chinook go to the bars around hope and bar fish (or plunk) for them.