(TribLive) - When Pennsylvania lawmakers revised the state's alcohol laws this summer, they gave residents the ability to have wine shipped from any winery in the world to their doorstep.

The move jolted Pennsylvania from a handful of states that barred direct wine shipments to the forefront by allowing any winery — even foreign ones — to apply for direct shipping permits.

The changes were part of Act 39, an alcohol law overhaul that granted grocery stores and others with restaurant licenses to sell wine to go, put lottery ticket machines in state stores and expanded store hours.

As of last week, 463 wineries across the United States had received direct-shipping permits from the Pennsylvania Liquor Control Board. No foreign wineries have applied, LCB spokeswoman Elizabeth Brassell said.

Observers say Pennsylvania is poised to be a test case for how wineries could navigate complex federal and state laws to get their products directly to customers while bypassing liquor stores.

"There is absolutely no precedent here or law I can see on the books other than what you guys have got in front of you," said William Earle, president of the National Association of Beverage Importers. "In some ways, Pennsylvania is a leader here and blazing a trail (that) we're not sure where it's going to head."