(a) If the department concludes that the classification resulting from Env-Dw 502.14 does not accurately reflect the complexity of plant operations and the degree of skill required for its successful operation, the department shall adjust the classification as follows:
- (1) If the plant is more complex or if a higher degree of skill is required for successful operation, the department shall increase the plant classification by one grade, subject to the limitation that grade IV is the highest grade; and
- (2) If the plant is less complex or if a lower degree of skill is required for successful operation, the department shall decrease the plant classification by one grade, subject to the limitation that grade I-A is the lowest grade.
- (b) The determination to raise or lower the classification of a plant shall be based on inconsistency with other similar plants and public health and safety concerns.
Source. (See Revision Note at part heading for Env-Dw 502) #9410, eff 3-12-09); ss by #12363, eff 8-19-17 (formerly Env-Dw 502.13)