; and (2) $16,700 per inspection for rigs operating in water depths of less than 500 feet. (d) The Secretary shall bill designated operators under subsection (b) within 60 days, with payment required within 30 days of billing. The Secretary shall bill designated operators under subsection (c) within 30 days of the end of the month in which the inspection occurred, with payment required within 30 days of billing. Bureau of ocean energy management, regulation and enforcement reorganization 108. The Secretary of the Interior, in order to implement a reorganization of the Bureau of Ocean Energy Management, Regulation and Enforcement, may transfer funds among and between the successor offices and bureaus affected by the reorganization only in conformance with the reprogramming guidelines described in the report accompanying this Act. Contracts and agreements for wild horse and burro holding facilities 109. Notwithstanding any other provision of this Act, the Secretary of the Interior may enter into multiyear cooperative agreements with nonprofit organizations and other appropriate entities, and may enter into multiyear contracts in accordance with the provisions of section 3903 of title 41, United States Code (except that the 5-year term restriction in subsection (a) shall not apply), for the long-term care and maintenance of excess wild free roaming horses and burros by such organizations or entities on private land. Such cooperative agreements and contracts may not exceed 10 years, subject to renewal at the discretion of the Secretary. Mass marking of salmonids 110. The United States Fish and Wildlife Service shall, in carrying out its responsibilities to protect threatened and endangered species of salmon, implement a system of mass marking of salmonid stocks, intended for harvest, that are released from federally operated or federally financed hatcheries including but not limited to fish releases of coho, chinook, and steelhead species. Marked fish must have a visible mark that can be readily identified by