ORS 671.615

The State Landscape Contractors Board may license a landscape construction professional to install backflow assemblies for irrigation systems and ornamental water features. The board, by rule, shall establish qualifications for issuance of a license under this section. A landscape construction professional may install a backflow assembly only if the landscape construction professional is licensed under this section and is the owner of, or employed by, a licensed landscape contracting business. A landscape construction professional installing a backflow assembly may tap into the potable water supply only at a point after the connection between the water system and the customer, as that connection is defined in ORS 448.115.