A plumbing system shall be installed to preclude backflow of a solid, liquid, or gas contaminant into the water supply system at each point of use at the food establishment, including on a hose bibb if a hose is attached or on a hose bibb if a hose is not attached and backflow prevention is required by law, by:

1. (1) Providing an air gap as specified under OAC 310:257-9-15; or
2. (2) Installing an approved backflow prevention device as specified under OAC 310:257-9-16.

Added at 23 Ok Reg 2358, eff 6-25-06

Amended at 33 Ok Reg 1520, eff 9-11-16