{"formats":[{"name":"JSON","format":"json","url":"\/downloads\/2025\/code-json\/45.2-852.json"},{"name":"Plain Text","format":"text","url":"\/downloads\/2025\/code-text\/45.2-852.txt"},{"name":"XML","format":"xml","url":"\/downloads\/2025\/code-xml\/45.2-852.xml"},{"name":"HTML","format":"html","url":"\/downloads\/2025\/code-html\/45.2-852.html"}],"law_id":79750,"edition_id":1,"section_id":79750,"structure_id":14031,"section_number":"45.2-852","catch_line":" Rock dusting","history":"Code 1950, \u00a7 45-77; 1954, c. 191; 1966, c. 594, \u00a7 45.1-67; 1978, c. 120; 1994, c. 28, \u00a7 45.1-161.235; 1999, c. 256; 2021, Sp. Sess. I, c. 387.","full_text":"A\n\nEvery underground area of a mine, except an area in which the coal dust is too wet or too high in incombustible content to propagate an explosion, shall be rock-dusted to within 40 feet of every working face, unless such area is inaccessible or unsafe to enter or unless the Chief or his authorized representative permits an exception upon his finding that such exception does not pose a hazard to any miner. Every crosscut that is less than 40 feet from a working face shall also be rock-dusted.B\n\nEvery other area of a mine shall be rock-dusted if conditions are found by a proper inspection to be so dusty as to constitute a hazard. If such conditions are found to exist, the Chief or his authorized representative shall require the necessary rock dusting to make every such area of the mine safe.C\n\nCoal dust, including float coal dust deposited on rock-dusted surfaces, loose coal, and other combustible material, shall be cleaned up and shall not be permitted to accumulate excessively in active workings or on electric equipment therein.","order_by":null,"text":{"0":{"id":285757,"text":"Every underground area of a mine, except an area in which the coal dust is too wet or too high in incombustible content to propagate an explosion, shall be rock-dusted to within 40 feet of every working face, unless such area is inaccessible or unsafe to enter or unless the Chief or his authorized representative permits an exception upon his finding that such exception does not pose a hazard to any miner. Every crosscut that is less than 40 feet from a working face shall also be rock-dusted.","type":"section","prefixes":["A"],"prefix":"A","entire_prefix":"A","prefix_anchor":"A","level":1,"next_prefix":"B"},"1":{"id":285758,"text":"Every other area of a mine shall be rock-dusted if conditions are found by a proper inspection to be so dusty as to constitute a hazard. If such conditions are found to exist, the Chief or his authorized representative shall require the necessary rock dusting to make every such area of the mine safe.","type":"section","prefixes":["B"],"prefix":"B","entire_prefix":"B","prefix_anchor":"B","level":1,"prior_prefix":"A","next_prefix":"C"},"2":{"id":285759,"text":"Coal dust, including float coal dust deposited on rock-dusted surfaces, loose coal, and other combustible material, shall be cleaned up and shall not be permitted to accumulate excessively in active workings or on electric equipment therein.","type":"section","prefixes":["C"],"prefix":"C","entire_prefix":"C","prefix_anchor":"C","level":1,"prior_prefix":"B"}},"ancestry":[{"id":14031,"edition_id":1,"name":"Ventilation, Mine Gases, and Other Hazardous Conditions","identifier":"4","label":"article","depth":5,"order_by":1,"parent_id":14030,"metadata":{},"date_created":"2026-06-26 03:46:38","date_modified":"2026-06-26 03:46:38","permalink":{"id":223537,"object_type":"structure","relational_id":14031,"identifier":"4","token":"45.2\/II\/B\/8\/4","url":"\/45.2\/II\/B\/8\/4\/","edition_id":1,"permalink":0,"preferred":1}},{"id":14030,"edition_id":1,"name":"Requirements Applicable to Underground Coal Mines; Electricity, Safety, Etc","identifier":"8","label":"chapter","depth":4,"order_by":1,"parent_id":12986,"metadata":{},"date_created":"2026-06-26 03:46:38","date_modified":"2026-06-26 03:46:38","permalink":{"id":223425,"object_type":"structure","relational_id":14030,"identifier":"8","token":"45.2\/II\/B\/8","url":"\/45.2\/II\/B\/8\/","edition_id":1,"permalink":0,"preferred":1}},{"id":12986,"edition_id":1,"name":"Underground Coal Mines","identifier":"B","label":"part","depth":3,"order_by":1,"parent_id":12985,"metadata":{},"date_created":"2026-06-26 03:44:06","date_modified":"2026-06-26 03:44:06","permalink":{"id":223095,"object_type":"structure","relational_id":12986,"identifier":"B","token":"45.2\/II\/B","url":"\/45.2\/II\/B\/","edition_id":1,"permalink":0,"preferred":1}},{"id":12985,"edition_id":1,"name":"Coal Mining","identifier":"II","label":"subtitle","depth":2,"order_by":1,"parent_id":12713,"metadata":{},"date_created":"2026-06-26 03:44:06","date_modified":"2026-06-26 03:44:06","permalink":{"id":222647,"object_type":"structure","relational_id":12985,"identifier":"II","token":"45.2\/II","url":"\/45.2\/II\/","edition_id":1,"permalink":0,"preferred":1}},{"id":12713,"edition_id":1,"name":"Mines, Minerals, and Energy","identifier":"45.2","label":"title","depth":1,"order_by":1,"parent_id":null,"metadata":{},"date_created":"2026-06-26 03:43:49","date_modified":"2026-06-26 03:43:49","permalink":{"id":222539,"object_type":"structure","relational_id":12713,"identifier":"45.2","token":"45.2","url":"\/45.2\/","edition_id":1,"permalink":0,"preferred":1}}],"structure_contents":[{"id":61647,"structure_id":14031,"section_number":"45.2-826","catch_line":" Pre-shift examinations","url":"\/45.2-826\/","token":"45.2\/II\/B\/8\/4\/45.2-826","metadata":false},{"id":75532,"structure_id":14031,"section_number":"45.2-827","catch_line":" On-shift examinations","url":"\/45.2-827\/","token":"45.2\/II\/B\/8\/4\/45.2-827","metadata":false},{"id":84889,"structure_id":14031,"section_number":"45.2-828","catch_line":" Weekly examinations","url":"\/45.2-828\/","token":"45.2\/II\/B\/8\/4\/45.2-828","metadata":false},{"id":55121,"structure_id":14031,"section_number":"45.2-829","catch_line":" Examinations of fans","url":"\/45.2-829\/","token":"45.2\/II\/B\/8\/4\/45.2-829","metadata":false},{"id":78974,"structure_id":14031,"section_number":"45.2-830","catch_line":" Record of examinations","url":"\/45.2-830\/","token":"45.2\/II\/B\/8\/4\/45.2-830","metadata":false},{"id":73101,"structure_id":14031,"section_number":"45.2-831","catch_line":" Notice of hazardous conditions","url":"\/45.2-831\/","token":"45.2\/II\/B\/8\/4\/45.2-831","metadata":false},{"id":56771,"structure_id":14031,"section_number":"45.2-832","catch_line":" Notice of monitor tampering prohibition","url":"\/45.2-832\/","token":"45.2\/II\/B\/8\/4\/45.2-832","metadata":false},{"id":84902,"structure_id":14031,"section_number":"45.2-833","catch_line":" Main fans","url":"\/45.2-833\/","token":"45.2\/II\/B\/8\/4\/45.2-833","metadata":false},{"id":64758,"structure_id":14031,"section_number":"45.2-834","catch_line":" Fan stoppage plan","url":"\/45.2-834\/","token":"45.2\/II\/B\/8\/4\/45.2-834","metadata":false},{"id":61736,"structure_id":14031,"section_number":"45.2-835","catch_line":" Auxiliary fans","url":"\/45.2-835\/","token":"45.2\/II\/B\/8\/4\/45.2-835","metadata":false},{"id":78287,"structure_id":14031,"section_number":"45.2-836","catch_line":" Quantity of air","url":"\/45.2-836\/","token":"45.2\/II\/B\/8\/4\/45.2-836","metadata":false},{"id":81164,"structure_id":14031,"section_number":"45.2-837","catch_line":" Bleeder systems","url":"\/45.2-837\/","token":"45.2\/II\/B\/8\/4\/45.2-837","metadata":false},{"id":55504,"structure_id":14031,"section_number":"45.2-838","catch_line":" Coursing of air","url":"\/45.2-838\/","token":"45.2\/II\/B\/8\/4\/45.2-838","metadata":false},{"id":75203,"structure_id":14031,"section_number":"45.2-839","catch_line":" Actions for excessive methane","url":"\/45.2-839\/","token":"45.2\/II\/B\/8\/4\/45.2-839","metadata":false},{"id":75918,"structure_id":14031,"section_number":"45.2-840","catch_line":" Crosscuts","url":"\/45.2-840\/","token":"45.2\/II\/B\/8\/4\/45.2-840","metadata":false},{"id":78688,"structure_id":14031,"section_number":"45.2-841","catch_line":" Permanent stoppings","url":"\/45.2-841\/","token":"45.2\/II\/B\/8\/4\/45.2-841","metadata":false},{"id":86254,"structure_id":14031,"section_number":"45.2-842","catch_line":" Ventilation controls","url":"\/45.2-842\/","token":"45.2\/II\/B\/8\/4\/45.2-842","metadata":false},{"id":59441,"structure_id":14031,"section_number":"45.2-843","catch_line":" Line brattice","url":"\/45.2-843\/","token":"45.2\/II\/B\/8\/4\/45.2-843","metadata":false},{"id":70834,"structure_id":14031,"section_number":"45.2-844","catch_line":" Ventilation with air from certain areas","url":"\/45.2-844\/","token":"45.2\/II\/B\/8\/4\/45.2-844","metadata":false},{"id":64318,"structure_id":14031,"section_number":"45.2-845","catch_line":" Worked-out areas","url":"\/45.2-845\/","token":"45.2\/II\/B\/8\/4\/45.2-845","metadata":false},{"id":74385,"structure_id":14031,"section_number":"45.2-846","catch_line":" Air quality","url":"\/45.2-846\/","token":"45.2\/II\/B\/8\/4\/45.2-846","metadata":false},{"id":71388,"structure_id":14031,"section_number":"45.2-847","catch_line":" Examination of mine for explosive gas and other hazardous conditions","url":"\/45.2-847\/","token":"45.2\/II\/B\/8\/4\/45.2-847","metadata":false},{"id":86482,"structure_id":14031,"section_number":"45.2-848","catch_line":" Tampering with methane monitoring devices prohibited; penalty","url":"\/45.2-848\/","token":"45.2\/II\/B\/8\/4\/45.2-848","metadata":false},{"id":66298,"structure_id":14031,"section_number":"45.2-849","catch_line":" Allowing persons to work in mine where methane monitoring equipment disconnected; penalty","url":"\/45.2-849\/","token":"45.2\/II\/B\/8\/4\/45.2-849","metadata":false},{"id":77699,"structure_id":14031,"section_number":"45.2-850","catch_line":" Intentionally bypassing a safety device; prohibition","url":"\/45.2-850\/","token":"45.2\/II\/B\/8\/4\/45.2-850","metadata":false},{"id":68872,"structure_id":14031,"section_number":"45.2-851","catch_line":" Control of coal dust","url":"\/45.2-851\/","token":"45.2\/II\/B\/8\/4\/45.2-851","metadata":false},{"id":79750,"structure_id":14031,"section_number":"45.2-852","catch_line":" Rock dusting","url":"\/45.2-852\/","token":"45.2\/II\/B\/8\/4\/45.2-852","metadata":false}],"previous_section":{"id":68872,"structure_id":14031,"section_number":"45.2-851","catch_line":" Control of coal dust","url":"\/45.2-851\/","token":"45.2\/II\/B\/8\/4\/45.2-851","metadata":false},"metadata":false,"official_url":"https:\/\/law.lis.virginia.gov\/vacode\/45.2-852\/","history_text":"<p>The record of this law\u2019s original creation isn\u2019t available online. It has been modified 5 times. Those modifications are cataloged by \u201cThe Acts of Assembly,\u201d a state publication, by year and chapter. Those modifications that can be read on the General Assembly\u2019s website will be linked accordingly. Those modifications are as follows: in 1954, chapter 191; in 1966, chapter 594; in 1978, chapter 120; in 1994, chapter <a href=\"https:\/\/legacylis.virginia.gov\/cgi-bin\/legp604.exe?941+ful+CHAP0028\">28<\/a>; in 1999, chapter <a href=\"https:\/\/legacylis.virginia.gov\/cgi-bin\/legp604.exe?991+ful+CHAP0256\">256<\/a>.<\/p>","references":false,"refers_to":false,"permalink":{"id":223643,"object_type":"law","relational_id":79750,"identifier":"45.2-852","token":"45.2\/II\/B\/8\/4\/45.2-852","url":"\/45.2-852\/","edition_id":1,"permalink":0,"preferred":1},"url":"\/45.2-852\/","token":"45.2\/II\/B\/8\/4\/45.2-852","dublin_core":{"Title":" Rock dusting","Type":"Text","Format":"text\/html","Identifier":"\u00a7 45.2-852","Relation":"Code of Virginia"},"html":"\n\t\t\t\t\t\t<section id=\"A\"><p><span class=\"prefix-number\">A.<\/span> Every underground area of a mine, except an area in which the coal dust is too wet or too high in incombustible content to propagate an explosion, shall be rock-dusted to within 40 feet of every working face, unless such area is inaccessible or unsafe to enter or unless the <span class=\"dictionary\">Chief<\/span> or his authorized representative permits an exception upon his <span class=\"dictionary\">finding<\/span> that such exception does not pose a hazard to any miner. Every crosscut that is less than 40 feet from a working face shall also be rock-dusted. <a id=\"paragraph-285757\" class=\"section-permalink\" href=\"https:\/\/vacode.org\/45.2-852\/#A\"><i class=\"fa fa-link\"><\/i><\/a><\/p><\/section>\n\t\t\t\t\t\t<section id=\"B\"><p><span class=\"prefix-number\">B.<\/span> Every other area of a mine shall be rock-dusted if conditions are found by a proper inspection to be so dusty as to constitute a hazard. If such conditions are found to exist, the <span class=\"dictionary\">Chief<\/span> or his authorized representative shall require the necessary rock dusting to make every such area of the mine safe. <a id=\"paragraph-285758\" class=\"section-permalink\" href=\"https:\/\/vacode.org\/45.2-852\/#B\"><i class=\"fa fa-link\"><\/i><\/a><\/p><\/section>\n\t\t\t\t\t\t<section id=\"C\"><p><span class=\"prefix-number\">C.<\/span> Coal dust, including float coal dust deposited on rock-dusted surfaces, loose coal, and other combustible <span class=\"dictionary\">material<\/span>, shall be cleaned up and shall not be permitted to accumulate excessively in active workings or on electric equipment therein. <a id=\"paragraph-285759\" class=\"section-permalink\" href=\"https:\/\/vacode.org\/45.2-852\/#C\"><i class=\"fa fa-link\"><\/i><\/a><\/p><\/section>","plain_text":"                                 CODE OF VIRGINIA\n\n ROCK DUSTING (\u00a7 45.2-852)\n\nA. Every underground area of a mine, except an area in which the coal dust is\ntoo wet or too high in incombustible content to propagate an explosion, shall be\nrock-dusted to within 40 feet of every working face, unless such area is\ninaccessible or unsafe to enter or unless the Chief or his authorized\nrepresentative permits an exception upon his finding that such exception does\nnot pose a hazard to any miner. Every crosscut that is less than 40 feet from a\nworking face shall also be rock-dusted.\n\nB. Every other area of a mine shall be rock-dusted if conditions are found by a\nproper inspection to be so dusty as to constitute a hazard. If such conditions\nare found to exist, the Chief or his authorized representative shall require the\nnecessary rock dusting to make every such area of the mine safe.\n\nC. Coal dust, including float coal dust deposited on rock-dusted surfaces, loose\ncoal, and other combustible material, shall be cleaned up and shall not be\npermitted to accumulate excessively in active workings or on electric equipment\ntherein.\n\nHISTORY: Code 1950, \u00a7 45-77; 1954, c. 191; 1966, c. 594, \u00a7 45.1-67; 1978, c.\n120; 1994, c. 28, \u00a7 45.1-161.235; 1999, c. 256; 2021, Sp. Sess. I, c. 387.","edition":{"id":1,"name":"2025","slug":"2025","date_created":"2026-06-21 22:39:22","date_modified":"2026-06-21 22:39:22","current":1,"order_by":1,"last_import":null}}