All those laws are essentially window dressing and unenforceable. Haven't you ever seen the tribes selling fish out of their pickup trucks? Never ever a letter or tally sheet. I suspect that a majority of the harvested salmon and steelhead are unrecorded. This leads , of course, to a much much higher than 50% share of the harvestable fish. The term "harvestable" is interesting too in that the tribes harvest all the time whether runs are harvestable to the rest of us or not. Enforcement of anything on the rez is rare.