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. [1987 c.561 § 2; 1989 c.944 § 3; 1995 c.645 § 2; 2001 c.181 § 2; 2005 c.609 § 15; 2007 c.541 § 31]