Mississippi Code Title 49. Conservation and Ecology § 49-17-34

(1) Within fifteen (15) days after receipt by the Department of Environmental Quality an application for any initial or modified air or water permit required under the Mississippi Air and Water Pollution Control Law that is submitted after April 16, 1993 the Department of Environmental Quality shall acknowledge in writing receipt of such application. Except for good cause shown, within forty-five (45) days after receipt of a permit application, the Department of Environmental Quality shall notify the applicant that the application is complete or of the major components required to complete the application.

(2) All rules, regulations and standards relating to air quality, water quality or air emissions or water discharge standards promulgated by the commission after April 16, 1993 shall be consistent with and shall not exceed the requirements of federal statutes and federal regulations, standards, criteria and guidance relating to air quality, water quality or air emission or water discharge standards that have been duly promulgated pursuant to the federal Administrative Procedures Act, including but not limited to the identity and scope of air pollutants included as air toxics or air quality or emission standards, the identity and scope of water pollutants included as water quality or discharge standards and the numerical and narrative limitations of such standards.

(3) If there are no federal statutes or federal regulations, standards, criteria or guidance that have been duly promulgated pursuant to the federal Administrative Procedures Act addressing matters relating to air quality or water quality, or air emission or water discharge standards, the commission may promulgate regulations to address these matters in accordance with the Mississippi Administrative Procedures Act, when the commission determines that such regulations are necessary to protect human health, welfare or the environment.

(4) For any initial or modified air or water permit issued from and after January 1, 1994, except with the written consent of the permit applicant, no provision or condition imposing any duty, responsibility or liability on the permittee shall be included in such permit, the direct basis for which has not been first promulgated as a regulation by the commission in accordance with the requirements of the Mississippi Administrative Procedures Act. “Direct basis” shall mean that such permit provisions or conditions shall not exceed the scope, coverage and effect of the regulation upon which it is based including, but not limited to, frequency or time limit of action, technology, identity and scope of pollutants regulated, numerical or narrative standards or limitations.