Coffee shops, bistros, and so-called holes in the wall will no longer be allowed to skirt a state health regulation if a bill passed by the Massachusetts House Tuesday becomes law.

The bill would close a loophole that exempts restaurants with fewer than 25 seats from a state law that requires such businesses to have someone on site who is trained in the procedures for removing food lodged in someone’s throat, said state Representative Ruth Balser, Democrat of Newton.