On and after September 27, 1987, an operator holding a current Oregon sewage treatment certification issued under a voluntary certification program shall be considered certified under the program established under ORS § 448.410 at the same classification and grade. Certification of operators by any state that, as determined by the Director of the Department of Environmental Quality, accepts certifications made under ORS § 448.410 to 448.430 and 448.992, shall be accorded reciprocal treatment and shall be recognized as valid and sufficient within the purview of ORS § 448.410 to 448.430 and 448.992, if in the judgment of the director, the certification requirements of such state are substantially equivalent to the requirements of ORS § 448.410 to 448.430 and 448.992 or any rule adopted under ORS § 448.410 to 448.430 and 448.992. [1987 c.635 § 5]

See note under 448.405.