Idaho Code § 22-4905

Each new beef cattle animal feeding operation and each modified beef cattle animal feeding operation shall design and construct all new and modified wastewater storage and containment facilities in accordance with the engineering standards and specifications provided by the natural resource conservation service or the American society of agricultural engineers (ASAE) [American society of agricultural and biological engineers (ASABE)] or other equally protective standard approved by the director. The department’s review and approval of plans under this section shall supersede the Idaho department of environmental quality’s implementation of plan and specification review and approval provided under section 39-118, Idaho Code. Such design and construction shall be considered a best management practice.