OMFG. You frigging yankees can't even RTFA.
"OMG! ZOMG! gov't taking our freedoms!!! this must stop now!!!!!"
Let me help those of you who are not yet blind with rage, by quoting the RTFA:
The spent grain is hauled to dairy farms in the area, giving local cows a high-protein, high-fiber feed.
The proposal would classify companies that distribute spent grain to farms as animal feed manufacturers, possibly forcing them to dry and package the material before distribution.
It's not targeted on breweries specifically. It is targeted at diary farms. It is about accountability what the cows are fed with. Breweries inserted themselves into the market and, as suppliers, are subject to regulations.