The following is a list of the dates amendments were submitted to OSM, the dates when the Director's decision approving all, or portions of these amendments, were published in the Federal Register and the State citations or a brief description of each amendment. The amendments in this table are listed in order of the date of final publication in the Federal Register.

Open Table
Original amendment submission date Date of final publication Citation/description
September 13, 1983 January 3, 1984 MCA 82-4-237, -251(4), -254.
April 2, 1984 January 3, 1985 ARM 26.4.1206 through .1209, .1211, .1212.
January 3, 1984 November 18, 1985 ARM 26.4.310, .621 through .626, .1260 through .1263.
July 3, 1985 February 14, 1986 MCA 82-4-231, 232, 254.
April 23, 1987 December 31, 1987 MCA 82-4-203, 222, 223.
December 21, 1988 May 11, 1990 ARM 26.4 subchapters 3, definitions and strip mine permit application requirements; 4, mine permit and test pit prospecting permit procedures; 5, backfilling and grading requirements; 6, transportation facilities, explosives and hydrology; 7, topsoiling, revegetation, and protection of wildlife and air resources; 8, alluvial valley floors, prime farmlands, alternate reclamation, and auger mining; 9, underground coal and uranium mining; 10, prospecting; 11, bonding, insurance reporting, and special areas; 12, special departmental procedures; 13, miscellaneous provisions.
June 19, 1990 March 20, 1991, August 19, 1992 ARM 26.4.724 through 726, .728, .730 through .733, .1301A, .724; ARM 26.4.920, .924 through .927, .930, .932; ARM 26.4 subchapters 3, 5, 8, 11, 12.
October 19, 1992 February 25, 1994 MCA 82-4-203(26).
June 16, 1993, July 28, 1993 February 1, 1995 MCA 82-4-203, subsections (14), (16), (21), (23), (29), (34), (35), (36), definitions; 82-4-224, surface owner consent; 82-4-226, subsections (1), (2), (3), (5), (6), (8), prospecting permits and notices of intent; 82-4-227, subsections (1), (2), (3), (7) through (13), permit approval/denial criteria.
May 16, 1995 January 22, 1999 MCA 2-15-3501, 2-15-3502, 82-4-203(1) through (35), except (24); MCA 82-4-204; MCA 82-4-205; MCA 82-4-221; MCA 82-4-223; MCA 82-4-226(8); MCA 82-4-227; MCA 82-4-231; MCA 82-4-232(6) and (7); MCA 82-4-235; MCA 82-4-240; MCA 82-4-242; MCA 82-4-251; and MCA 82-4-254(1) through (3). Decision deferred on MCA 82-4-239; MCA 82-4-203(24) disapproved.
March 5, 1996 January 22, 1999 ARM 26.4.301(114); 26.4.410; 26.4.1001; and 26.4.1001A.
July 20 and August 17, 2000 6/12/01 MCA 82-4-203(1) and (21)(d), 82-4-232(1), (7) and (8), 82-4-233(1) and 4, 82-4-243, 82-4-253(1), (2) and (3) and 82-4-254(1), (2), (3), (4) and (9).
April 27, 2001 November 21, 2001 MCA 82-4 part 2 Operating permit revocation—permit transfer
February 1 and 28, 1995 February 12, 2002 ARM 26.4.301(79) through (137); 26.4.304(5) and (6); 26.4.308(2); 26.4.314(3) and (5); 26.4.321(1) and (3); 26.4.404(5); 26.4.405(6) and (8); 26.4.407(1), (2) and (4); 26.4.501A(3); 26.4.505(4) through (8); 26.4.524(2); 26.4.601(5) and (7); 26.4.602(2); 26.4.603(9) and Introduction; 26.4.605(3); 26.4.623(2); 26.4.633(2); 26.4.634(1) and (2); 26.4.638(2); 26.4.639(1), (10), (18) and (19); 26.4.642(5) and (8); 26.4.702(4); 26.4.711(2) through(6); 26.4.721(1) through (3); 26.4.724(6); 26.4.726(2) and (3); 26.4.821(1); 26.4.825(4) and (6); 26.4.924(3) through (5), (8) through (21); 26.4.927(2) and (3); 26.4.930(3); 26.4.932(8); 26.4.1002(1) and (2); 26.4.1005(2) and (3); 26.4.1006(1) through (4); 26.4.1007(1) and (2); 26.4.1009(1) and (2); 26.4.1011(1); 26.4.1014; 26.4.1116(7); 26.4.1116A(1) and (2); 26.4.1141(3); and 26.4.1212(1) are approved. ARM 26.4.301(78); 26.3.303, Introduction, (1), (6) through (8), (13) through (15), and (20) through (24); 26.4.404(7) through (10); 26.4.405(5); 26.4.405A; 26.4.405B, 26.4.519A; 26.4.645(6); 26.4.646(6); 26.4.932(5)(b) and 26.4.1206(1) are deferred.
May 7, 2002 August 6, 2003 ARM 17.24.301 (recodified); 17.24.301(13), (34), (39), (46), (47), (64), (71), (73), (76), (79), (95), (103), (110), (111), (133); 17.24.302(6); 17.24.303(15)(a)(ii); 17.24.304(5); 17.24.305(2)(b); 17.24.306(1), (3); 17.24.313(6); 17.24.315(1)(b); 17.24.321(1)(intro), (a), (2)-(4); 17.24.324(2), (3); 17.24.327(2); 17.24.401(1), (5)(b)(i); 17.24.403(2)(a); 17.24.405(1), (8); 17.24.413(4); 17.24.415(1); 17.24.416(1)(d), (2); 17.24.501(1), (3), (4)-(6); 17.24.501A deleted; 17.24.503(1); 17.24.505(2); 17.24.507(4); 17.24.510(1), (2); 17.24.514 deleted; 17.24.518(1); 17.24.519A deleted; 17.24.520(1), (2), (3 recodified); 17.24.522(1); 17.24.601(1)-(11); 17.24.603(1)-(5); 17.24.604 deleted; 17.24.605(1)-(3); 17.24.606 [moved to 17.24.601(7)]; 17.24.607(1)-(3); 17.24.623(2)(b)(iii); 17.24.625(1), (2); 17.24.632(1); 17.24.633(3)-(5); 17.24.634(1)(intro), (a), (2), (3); 17.24.639(1)(c)-(27); 17.24.640(1); 17.24.642(1)(f), (2), (3), (6); 17.24.645(5 intro), (6); 17.24.646(6); 17.24.647(1); 17.24.652(1); 17.24.702(1), (2), (6); 17.24.711(1), (6)(b); 17.24.716(1), (2), (5); 17.24.718(2); 17.24.724(3)(a); 17.24.725(1); 17.24.726(2); 17.24.728 (intro); 17.24.733(3), recodified (3)-(5); 17.24.762(1); 17.24.815(2)(c)-(e), (f)(i), (h); 17.24.821(1)(intro), (1)(g); 17.24.823(2); 17.24.825(1), (3); 17.24.826(1), (2) [replaces 17.24.1103]; 17.24.901(1)(c)(i)-(iii); 17.24.903(1)(a), (c), (d); 17.24.911(1)-(3), (4)-(6) recodified, (7)(intro), (8)-(10); 17.24.924(15)-(20); 17.24.925(2); 17.24.927(3); 17.24.1001(1)(a), (2)(b)-(o), (4); 17.24.1002(1), (2)(j)-(m), (3); 17.24.1003(1 recodified), (2)-(4); 17.24.1005(3)(c intro); 17.24.1006(1), (3)(intro); 17.24.1010 intro; 17.24.1014(1)(b), (2)(d), (4); 17.24.1017(2)(c), (3)(d); 17.24.1018(3)-(9); 17.24.1103 deleted; 17.24.1104(2), recodify (3)-(5); 17.24.1108(1); 17.24.1111(4), recodify (5)-(6); 17.24.1112(1)(h); 17.24.1116(8); 17.24.1116A deleted; 17.24.1132(1)(a)(iv); 17.24.1143(1); 17.24.1221(1); 17.24.1222(2); 17.24.1223(5) (intro), (6)(b); 17.24.1224(1)(b); 17.24.1225(1)-(3); 17.24.1226(1), (2); 17.24.1228(1); 17.24.1261(1), (2), (4)(b), (c), (5); 17.24.1262(1 as recodified).
    MCA 82-4-205 recodification, (1), (2); 82-4-206 title, (1), (2); 82-4-231(8)(c), (d), (f); 82-4-241(1)-(3); 82-4-254(3), (4).
July 29, 2003 February 16, 2005 MCA 82-4-202(3)(c); (3)(e) except for the phrase “and attainable”; 82-4-203(2); 82-4-203(4) except at (4)(c) the phrase “as necessary to support postmining land uses within the area affected and the adjacent area”; 82-4-203(13), (16), (17), (20) through (23); (24) except the phrase “as they relate to uses of land and water within the area affected by mining and the adjacent area”; (26), (27), (28), (30), (37), (38), (42) through (44), (46), (47), (50), (55); 82-4-221(3); 82-4-222(1)(m)-(p); 82-4-231(10)(k) except the phrase “as necessary to support postmining land uses and to prevent material damage to the hydrologic balance in the adjacent area”; 82-4-231(10)(k)(vii); (viii) except the phrase “to protect the hydrologic balance as necessary to support postmining land uses within the area affected and to prevent material damage to the hydrologic balance in adjacent areas”; 82-4-232(1) through (10); 82-4-233; 82-4-234; 82-4-235(1)-(1)(c); 82-4-235(1)(e)-(f); 82-4-235(1)(g) except the phrase “are introduced species that have become naturalized”; 82-4-236; HB 373 Section 11; 82-4-252(2); HB 684 repeal of Sec. 5, Chapter 522, Laws of 2001; also all editorial and codification changes.
    We are taking no action on: MCA 82-4-202(1); 82-4-239.
August 31, 2005 October 10, 2007 ARM 17.24.301(6); 17.24.301(11); 17.24.301(13) (intro) and (a), (b), and (d); 17.24.301(26); 17.24.301(33); 17.24.301(36); 17.24.301(38); 17.24.301(46); 17.24.301(50); 17.24.301(54); 17.24.301(59); 17.24.301(64); 17.24.301(64)(b), (c), (d), (g), and (h); 17.24.301(67); 17.24.301(90); 17.24.301(103); 17.24.301(107)(b); 17.24.301(143); 17.24.302; 17.24.303(1)(w), (x), and (y); 17.24.305(2)(b)(i); 17.24.308(1)(b)(vii); 17.24.312(1)(b); 17.24.313; 17.24.321(1) and (3); 17.24.322(2)(a)(x) and (4); 17.24.323; 17.24.324(1)(e); 17.24.401(3)(f) and (5)(a)(iv); 17.24.404(9) and (10); 17.24.405(1) and (2), (6)(j), and (7); 17.24.416(1)(b); 17.24.413(1)(f); 17.24.427(1)(a), (c) and (2); 17.24.501(4)(a), (d) and (6)(d); 17.24.515; 17.24.522(3); 17.24.603(4); 17.24.605(8); 17.24.609(1); 17.24.623(2) and (5)(b); 17.24.624(4), (6)(a), (7)(a), (11) and (14); 17.24.626(1)(j); 17.24.633(2); 17.24.634; 17.24.636(2) and (3); 17.24.639(2), (3) and (7); 17.24.642(1)-(7); 17.24.646(4); 17.24.701(4); 17.24.702(4)(b) and (6); 17.24.711; 17.24.714(1); 17.24.716(1), (3), (4), and (5); 17.24.717(1); 17.24.718(3); 17.24.719; 17.24.720; 17.24.724(1)-(3); 17.24.726 except at (1) the proposed deletion of the phrase “the application and must;” 17.24.728; 17.24.751(1) and (2)(a), (c), (e), and (f); 17.24.762(1)(a)-(d), (2), and (3); 17.24.764; 17.24.815(1)(a)(i), (ii) and (b); 17.24.821; 17.24.823; 17.24.824; 17.24.825; 17.24.826; 17.24.832(4) and (5)(b) and (c); 17.24.1001; 17.24.1104(1) and (3); 17.24.1108(1), (2) and (4); 17.24.1109(1)(d)-(g); 17.24.1116; 17.24.1125(2); 17.24.1132(1)(a); 17.24.1133(2)(a), (b), and (3); 17.24.1201(1)-(4); 17.24.1202; 17.24.1301; also all minor, editorial, and codification changes.
January 18, 2006 May 14, 2008 Montana Code Annotated (MCA) 82-4-206; 82-4-223; 82-4-225; 82-4-226; 82-4-227; 82-4-231; 82-4-232; 82-4-233; 82-4-235; 82-4-251; 82-4-254; 82-4-1001; 82-4-1002.
November 6, 2006 May 14, 2008 Administrative Record of Montana (ARM) 17.4.301; 17.4.302; 17.4.303; 17.4.304; 17.4.305; 17.4.306; 17.4.307; 17.4.308; 17.24.1206; 17.24.1211; 17.24.1212; 17.24.1218; 17.24.1219; 17.24.1220.
July 7, 2008 January 5, 2009 Montana Strip and Underground Mine Reclamation Act 82-4-232(3) and (4), 82-4-232 (5)(k), 82-4-232(5)(l).
July 3, 2008 December 27, 2010 Normal husbandry practices.
July 14, 2010 March 9, 2011 ARM 17.24.1109.
May 12, 2009 May 24, 2011 MCA 82-4-235(2), -235(3)(a), -235(3)(b), -235(4)(a), and -235(4)(b).
August 19, 2011 September 19, 2012 MCA 82-4-203(4)(c) (definition of AOC); addition of -203(27) “in situ coal gasification;” -203(44) “recovery fluid;” recodification of former -203(27) through (56).
August 20, 2013 October 23, 2019 ARM 17.24.1001(1)(b), (1)(c), (2), (2)(h)(iii)(F), (2)(q), and (7), Permit Requirement; ARM 17.24.1002(3), Information and Monthly Reports; ARM 17.24.1003(1), Renewal and Transfer of Permits; ARM 17.24.1005(2)(d), Drill holes; ARM 17.24.1016(3), Bond Requirements for Drilling Operations; ARM 17.24.1018(1)(b), (2), (4), (5)(a), (6), (7), (8), and (9), Notice of Intent to Prospect; ARM 17.24.1019, Permit requirement—short form; MCA 82-4-222(1)(k), (1)(l), (2), (2)(l), (2)(m), and (8), Permit application—application revisions; MCA 82-4-226(1), (2), (7)(a), (7)(b)(i), (7)(b)(ii), and (8), Prospecting permit; MCA 82-4-227 (8), Refusal of permit—applicant violator system; MCA 82-4-237(1), (1)(a), (1)(b), (1)(c), (2), and (3), Operator to file annual reports; MCA 82-4-253(3)(d), Suit for damage to water supply.
February 27, 2017 October 30, 2019 Mont. Code Ann. 82-4-207 In situ gasification rulemaking ARM 17.24.902, 17.24.903, and 17.24.905, In situ gasification.

[62 FR 9946, Mar. 5, 1997, as amended at 64 FR 3610, 3615, Jan. 22, 1999; 66 FR 31533, June 12, 2001; 66 FR 58381, Nov. 21, 2001; 67 FR 6408, Feb. 12, 2002; 68 FR 46477, Aug. 6, 2003; 70 FR 8018, Feb. 16, 2005; 72 FR 57838, Oct. 10, 2007; 73 FR 27743, May 14, 2008; 74 FR 219, Jan. 5, 2009; 75 FR 81119, Dec. 27, 2010; 76 FR 12859, Mar. 9, 2011; 76 FR 30013, May 24, 2011; 77 FR 58025, Sept. 19, 2012; 84 FR 56695, Oct. 23, 2019; 84 FR 58051, Oct. 30, 2019]


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