{"data":{"id":"us/40-cfr-60.381","jurisdiction":"us","citation":"40 CFR 60.381","heading":"Definitions.","body":"All terms used in this subpart, but not specifically defined in this section, shall have the meaning given them in the Act and in subpart A of this part.\nBucket elevator means a conveying device for metallic minerals consisting of a head and foot assembly that supports and drives an endless single or double strand chain or belt to which buckets are attached.\nCapture system means the equipment used to capture and transport particulate matter generated by one or more affected facilities to a control device.\nControl device means the air pollution control equipment used to reduce particulate matter emissions released to the atmosphere from one or more affected facilities at a metallic mineral processing plant.\nConveyor belt transfer point means a point in the conveying operation where the metallic mineral or metallic mineral concentrate is transferred to or from a conveyor belt except where the metallic mineral is being transferred to a stockpile.\nCrusher means a machine used to crush any metallic mineral and includes feeders or conveyors located immediately below the crushing surfaces. Crushers include, but are not limited to, the following types: jaw, gyratory, cone, and hammermill.\nEnclosed storage area means any area covered by a roof under which metallic minerals are stored prior to further processing or loading.\nMetallic mineral concentrate means a material containing metallic compounds in concentrations higher than naturally occurring in ore but requiring additional processing if pure metal is to be isolated. A metallic mineral concentrate contains at least one of the following metals in any of its oxidation states and at a concentration that contributes to the concentrate's commercial value: Aluminum, copper, gold, iron, lead, molybdenum, silver, titanium, tungsten, uranium, zinc, and zirconium. This definition shall not be construed as requiring that material containing metallic compounds be refined to a pure metal in order for the material to be considered a metallic mineral concentrate to be covered by the standards.\nMetallic mineral processing plant means any combination of equipment that produces metallic mineral concentrates from ore. Metallic mineral processing commences with the mining of ore and includes all operations either up to and including the loading of wet or dry concentrates or solutions of metallic minerals for transfer to facilities at non-adjacent locations that will subsequently process metallic concentrates into purified metals (or other products), or up to and including all material transfer and storage operations that precede the operations that produce refined metals (or other products) from metallic mineral concentrates at facilities adjacent to the metallic mineral processing plant. This definition shall not be construed as requiring that mining of ore be conducted in order for the combination of equipment to be considered a metallic mineral processing plant. (See also the definition of metallic mineral concentrate.)\nProcess fugitive emissions means particulate matter emissions from an affected facility that are not collected by a capture system.\nProduct packaging station means the equipment used to fill containers with metallic compounds or metallic mineral concentrates.\nRailcar loading station means that portion of a metallic mineral processing plant where metallic minerals or metallic mineral concentrates are loaded by a conveying system into railcars.\nRailcar unloading station means that portion of a metallic mineral processing plant where metallic ore is unloaded from a railcar into a hopper, screen, or crusher.\nScreen means a device for separating material according to size by passing undersize material through one or more mesh surfaces (screens) in series and retaining oversize material on the mesh surfaces (screens).\nStack emissions means the particulate matter captured and released to the atmosphere through a stack, chimney, or flue.\nStorage bin means a facility for storage (including surge bins and hoppers) of metallic minerals prior to further processing or loading.\nSurface moisture means water that is not chemically bound to a metallic mineral or metallic mineral concentrate.\nThermal dryer means a unit in which the surface moisture content of a metallic mineral or a metallic mineral concentrate is reduced by direct or indirect contact with a heated gas stream.\nTruck loading station means that portion of a metallic mineral processing plant where metallic minerals or metallic mineral concentrates are loaded by a conveying system into trucks.\nTruck unloading station means that portion of a metallic mineral processing plant where metallic ore is unloaded from a truck into a hopper, screen, or crusher.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 60—STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES","Subpart LL—Standards of Performance for Metallic Mineral Processing Plants"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"7a3826b7c0051c4ce159f9d87d20dc8800c71bb48eb8a01adf8dc18cf0c63465","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-60.380","next":"us/40-cfr-60.382"},"notice":"GroundRules: Original legal text. Not legal advice."}