; UF6 The terms uranium hexafluoride and UF6 mean uranium that has been combined with fluorine, to form a compound that, dependent on temperature and pressure, can be a solid, liquid, or gas. (b) Transfers and sales by the Secretary The Secretary shall not provide enrichment services, or transfer, sell or otherwise provide any uranium to any person except in accordance with this section. (c) Development of Federal excess uranium management plan (1) In general Beginning on January 1, 2018, and not less frequently than once every 10 years thereafter, the Secretary shall issue a long-term Federal excess uranium inventory management plan (referred to in this section as the plan ) that details the management of the excess uranium inventories of the Department of Energy and covers a period of not fewer than 10 years. (2) Content (A) In general The plan shall cover all forms of uranium within the excess uranium inventory of the Department of Energy, including depleted uranium, highly enriched uranium, low-enriched uranium, natural uranium, off-spec uranium, and UF6. (B) Reducing impact on domestic industry The plan shall outline steps the Secretary will take to minimize the impact of transferring, selling, or otherwise providing uranium on the domestic uranium mining, conversion, and enrichment industries, including any actions for which the Secretary would require new authority. (C) Maximizing benefits to the Federal Government The plan shall outline steps the Secretary shall take to ensure that the Federal Government maximizes the potential value of uranium for the Federal Government. (3) Proposed plan Before issuing the final plan, the Secretary shall publish a proposed plan in the Federal Register pursuant to a rulemaking under section 553 of title 5, United States Code. (4) Deadlines for submission The Secretary shall issue— (A) a proposed plan for public comment under paragraph (3) not later than 180 days after the date of enactment of this paragraph