CA Fish & Game Code Section 5514

(a)

It is unlawful to kill or retain in possession any chinook, coho, or kokanee salmon or any steelhead that has not taken the bait or lure in its mouth, in inland waters.

(b)

Any chinook, coho, or kokanee salmon or any steelhead hooked other than in its mouth in inland waters shall be released unharmed.