Duties and powers of the department and the local

agency. The department and the local agency for their respective jurisdictions shall: A. develop facts and make investigations and studies consistent with the Air Quality Control Act and, as required for enforcement of that act, enter at all reasonable times in or upon any private or public property, except private residences, that the department or the local agency has reasonable cause to believe is or will become a source contributing to air pollution and require the production of information relating to emissions that cause or contribute to air pollution. The results of any such investigations shall be reduced to writing if any enforcement action is contemplated, and a copy shall be furnished to the owner or occupants of the premises before the action is filed; B. institute legal proceedings to compel compliance with the Air Quality Control Act or any regulation of the environmental improvement board or the local board; C. encourage and make every reasonable effort to obtain voluntary cooperation by the owner or occupants to preserve, restore or improve air purity; D. consult with any person proposing to construct, install or otherwise acquire an air contaminant source, device, system or control mechanism concerning the efficiency of the device, system or mechanism or the air pollution problem that may be related to the source, device, system or mechanism; provided that consultation shall not relieve any person from compliance with the Air Quality Control Act, regulations in force pursuant to that act or any other provision of law; E. establish a small business stationary source technical and environmental compliance assistance program, consistent with the provisions of Section 507 of the federal act; F. accept, receive and administer grants or other funds or gifts from public and private agencies, including the federal government, or from any person; G. classify and record air contaminant sources that, in its judgment, may cause or contribute to air pollution, according to levels and types of emissions and other characteristics that relate to air pollution; provided, classifications may be for application to the entire geographical area of the department's responsibility or the local authority's responsibility or to any designated portion of that area and shall be made with special reference to the effects on health, economic and social factors and physical effects on property; and H. develop and present to the environmental improvement board or the local board a plan for the regulation, control, prevention or abatement of air pollution, recognizing the differences, needs, requirements and conditions in the different portions of the geographical area of the department's responsibility or the local authority's responsibility.