; (ii) the installation of 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) (i) Adopting a solid separation system, installing a new solid separation system that has a significantly higher separation efficiency than any existing solid separation system, or developing or retrofitting a manure management system that primarily avoids wet handling infrastructure; and (ii) in conjunction with 1 or more of the following management measures: (I) Open solar drying or composting of manure onsite. (II) Solar drying in an enclosed environment. (III) Forced evaporation with natural-gas fueled dryers. (IV) Storage of manure in unconfined piles or stacks. (V) Composting in an enclosed vessel, with forced aeration and continuous mixing. (VI) Composting in piles with forced aeration without mixing. (VII) Composting in intensive windrows with regular turning for mixing and aeration. (VIII) Composting in passive windrows with infrequent turning for mixing and aeration. (IX) Vermiculture or vermifiltration. (X) Other similar activities, as determined by the Secretary. (D) Adopting scrape technologies, in conjunction with 1 of the management measures described in subclauses (I) through (X) of subparagraph (C)(ii). (3) Duties of eligible producers under contract To receive payments under the alternative manure management program, an eligible producer shall— (A) implement 1 or more management measures; (B) supply information as required by the Secretary to determine compliance with the requirements of the alternative manure management program