Several Michigan lawmakers want to make sure that a pint of beer is really a pint of beer, down to the last drop.

A bill introduced last week would amend the Liquor Control Act to make it an offense to "advertise or sell any glass of beer as a pint in this state unless that glass contains at least 16 ounces of beer."

Rep. Brandon Dillon, a Grand Rapids Democrat and co-sponsor of the bill, told NBC News that the goal is not to punish dishonest pub and restaurant owners, but to prompt proprietors to sell what they advertise.

“It’s kind of a truth-in-advertising issue,” Dillon said. “When you sell a product, you have to sell what you’re claiming to be offering.”

Rep. David Knezek, another sponsor, told NBC News that the legislation is about consumer protection. He said the only opposition he has received is from restaurant owners concerned that they may have to purchase all new glassware to abide by the new law, should it pass.

Knezek said the bill was motivated by complaints he had received from constituents about “cheater pints” and other glasses and cups that are sold as pints but instead contain less than 16 ounces.

“They’re just looking to get what they paid for,” Knezek said.

“It’s a pretty simple equation,” Dillon said. “If you offer a pint of beer, you should be selling 16 ounces.”

The Associated Press contributed to this report.