A couple decades ago, the building that houses popular local brewery Track 7 was an underground punk-rock venue. Last night, however, the brewery—tucked away just south of Sacramento City College in Hollywood Park—became a gubernatorial bill-signing hideaway.

Gov. Jerry Brown, joined by first lady Anne Gust, inked Assembly Bill 647 last night at Track 7, then enjoyed a pint of “Tracktoberfest.”

After signing #AB647 to permit refilling growlers, enjoying one at @track7brewing. Carpe Cervisiam! #craftbeer. pic.twitter.com/zGzlvzgzMT

— Jerry Brown (@JerryBrownGov) October 10, 2013

A.B. 647 will make life easier on beer guzzlers. Here’s how:

Breweries sell beer to go in “growlers,” or containers that typically are glass or stainless-steel and hold at least 750 ml of brew.

The catch is that, according to state law, breweries used to only be able to fill beer in growlers they provide, not growlers from other breweries or universal growlers. This means that beer drinkers often ended up with dozens of growlers taking up space at their homes. It also impacts beer sales, sort of.

But the law the governor signed last night allows beer fans reuse growler containers at any location—there are labeling and size rules, of course.

OK, so not every location. For instance, Russian River Brewing Co. in Santa Rosa, one of the most famous beer manufacturers in the world, has decided only to accept its own growlers for refills.

As for Track 7: They’re figuring out a plan for their growler future and will announce it soon on Facebook.

Update: Sutter Brown was also in the house:

Me and a fellow growler right after Dad signed AB 647! pic.twitter.com/VUW3UQ4STN

— Sutter Brown (@SutterBrown) October 10, 2013