As a paranoid newcomer (cough, beak, cough) I wanted to get the truth straight from the horses mouth, so to speak. So I contacted my friendly local Dep't of Fisheries people. Took a while to get through but their response was an unequivocal, "Yes, read your regs and check our site for continuing updates as to gear restrictions. Treble hooks are permitted in this fishery, provided that they are barbless hooks."
Just remember to don your thick skin before you hit the beach; some fellas get a bit steamy at the use of treble hooks, either cause they don't know the regs and are pissed that you may be doing something illegal or because they do know the regs but frown on trebles because of the increased tendency to foul hook with them. I find the second group of people much easier to deal with as the first group usually get their back up in a hurry and insist that everyone do as they say, "Cause I know what's what, dammit." Even when they're wrong.
For instance, had an otherwise meek looking gent in his 80's stop eating his picnic sandwich the other day at the little park just south of Crescent Island and tell me several times that all fishing on the Fraser was shut down so i'd better pull my rod up out the water.
"Above the Mission Bridge'" I told him.
"No, it's the other way around," he said. About 5 times. Meh.