; or (B) any technical assistance provided by the Secretary. (h) Modification or termination of contracts (1) Voluntary modification or termination The Secretary may modify or terminate a contract entered into with an eligible producer under the alternative manure management program if— (A) such eligible producer agrees to such modification or termination; and (B) the Secretary determines that such modification or termination is in the public interest. (2) Involuntary termination The Secretary may terminate a contract under the alternative manure management program if the Secretary determines that an eligible producer violated such contract. (i) Duties of the Secretary The Secretary shall— (1) determine and publish factors for estimating the carbon sequestrations and greenhouse gas emissions reductions for each covered management measure, including the management measures listed in subclauses (I) through (IX) in subsection (f)(2)(C)(ii); (2) assist an eligible producer in achieving the carbon sequestration, greenhouse gas emissions reduction, and other environmental and public health goals of the alternative manure management program by— (A) providing payments for developing and implementing one or more covered management measures, as appropriate; and (B) providing such eligible producer with information, technical assistance, and training to aid in implementation of the covered management measures; and (3) review the adequacy of existing conservation practice standards for supporting the covered management measures and, if necessary— (A) revise existing conservation practice standards