(a) Prior to entering into or approving a contract for the management of mixed municipal solid waste which would manage the waste using a waste management practice that is ranked lower on the list of preferred waste management practices in section 115A.02, paragraph (b), than the waste management practice selected for such waste in the county plan for the county in which the waste was generated, a public entity must:
(1) determine the potential liability to the public entity and its taxpayers for managing the waste in this manner;
(2) develop and implement a plan for managing the potential liability; and
(3) submit the information from clauses (1) and (2) to the agency.
(b) For the purpose of this subdivision, "public entity" means the state; an office, agency, or institution of the state; the Metropolitan Council; a metropolitan agency; the Metropolitan Mosquito Control District; the legislature; the courts; a county; a statutory or home rule charter city; a town; a school district; another special taxing district; or any other general or special purpose unit of government in the state.