; (B) greenhouse gas emissions reductions; and (C) the overall environmental and public health benefits. (2) Priority In awarding contracts under this section, the Secretary, using the criteria developed under paragraph (1), shall give priority to contract offers that address air quality, water quality, or other public health concerns associated with dairy and livestock operations located near low-income or underserved communities. (3) Grouping of contract offers The Secretary may group and evaluate contract offers relative to other contract offers for similar farming operations. (4) Geographical diversity In awarding contracts under this section, the Secretary shall ensure geographical diversity. (f) Contract provisions (1) Term A contract awarded under this section shall have a term that does not exceed 3 years. (2) Covered management measures Each eligible producer requesting funding under the alternative manure management program shall implement at least one of the following: (A) With respect to pasture-based management— (i) adopting pasture-based management; (ii) converting a non-pasture dairy or livestock operation to pasture-based management; (iii) increasing the amount of time livestock spend at pasture at an existing pasture operation; or (iv) improving pasture-based management, including transitioning to management-intensive rotational grazing, as defined in section 1240L(d). (B) Adopting alternative manure treatment and storage practices, including— (i) the installation of a compost-bedded pack barn that composts manure; (ii) the installation of a slatted floor pit storage manure collection that is cleaned out at least once a month; or (iii) other similar practices, as determined by the Secretary. (C) Adopting a solid separation system— (i) or— (I) installing a new solid separation system that has a significantly higher separation efficiency than any existing solid separation system; or (II) developing or retrofitting a manure management system that primarily avoids wet handling infrastructure