53 strips of land along the edges of rivers and streams and shorelines of lakes and the seas within or abutting the autonomous region. The Regional Government shall adopt measures for the development of lands eighteen percent (18%) in slope or over by providing infrastructure, financial and technical support to upland communities specially the lumads or tribal peoples. The Regional Government shall also adopt measures to employ the people who may be displaced by the cancellation or revocation of timber concessions, licenses, contracts, or agreements mentioned in paragraph above. SEC. 15. Prohibition Against Toxic or Hazardous Substances. – The Regional Government shall prohibit the use, importation, deposit, disposal, and dumping of toxic or hazardous substances within the autonomous region. SEC. 16. Business Ownership. – The Regional Government shall adopt policies to promote profit sharing and broaden the base of ownership of business enterprises. SEC. 17. Incentives, Tax Rebates and Holidays. – The Regional Assembly may by law, and with the approval of the absolute majority of all its members, grant incentives, including tax rebates and holidays, for investors in businesses that contribute to the development of the autonomous region. It may provide similar incentives to companies doing business in the autonomous region which reinvest at least fifty percent (50%) of their net profits therein, and to cooperatives which reinvest at least ten percent (10%) of their surplus into socially-oriented projects in the autonomous region. SEC. 18. Transport and Communication Facilities, Priority Projects. – The Regional Government shall give priority to the establishment of transportation and communication facilities to expedite the economic development of the autonomous region.