IB 
Union Calendar No. 336 
119TH CONGRESS 
1ST SESSION H. R. 1366 
[Report No. 119–386] 
To provide for the location of multiple hardrock mining mill sites, to establish 
the Abandoned Hardrock Mine Fund, and for other purposes. 
IN THE HOUSE OF REPRESENTATIVES 
FEBRUARY 14, 2025 
Mr. AMODEI of Nevada (for himself and Mr. HORSFORD) introduced the 
following bill; which was referred to the Committee on Natural Resources 
NOVEMBER 25, 2025 
Additional sponsor: Mr. BEGICH 
NOVEMBER 25, 2025 
Reported with an amendment, committed to the Committee of the Whole 
House on the State of the Union, and ordered to be printed 
[Strike out all after the enacting clause and insert the part printed in italic] 
[For text of introduced bill, see copy of bill as introduced on February 14, 2025] 
VerDate Sep 11 2014 
21:49 Nov 25, 2025
Jkt 069200
PO 00000
Frm 00001
Fmt 6652
Sfmt 6652
E:\BILLS\H1366.RH
H1366
kjohnson on DSK7ZCZBW3PROD with $$_JOB
A BILL 
To provide for the location of multiple hardrock mining mill 
sites, to establish the Abandoned Hardrock Mine Fund, 
and for other purposes. 
VerDate Sep 11 2014 
21:49 Nov 25, 2025
Jkt 069200
PO 00000
Frm 00002
Fmt 6652
Sfmt 6652
E:\BILLS\H1366.RH
H1366
kjohnson on DSK7ZCZBW3PROD with $$_JOB
Be it enacted by the Senate and House of Representa-
tives of the United States of America in Congress assembled, 
SECTION 1. SHORT TITLE. 
This Act may be cited as the ‘‘Mining Regulatory Clar-
ity Act’’. 
SEC. 2. HARDROCK MINING MILL SITES. 
(a) MULTIPLE MILL SITES.—Section 2337 of the Re-
vised Statutes of the United States (30 U.S.C. 42) is amend-
ed by adding at the end the following: 
‘‘(c) ADDITIONAL MILL SITES.— 
‘‘(1) DEFINITIONS.—In this subsection: 
‘‘(A) MILL
SITE.—The term ‘mill site’ 
means a location of public land that is reason-
ably necessary for waste rock or tailings disposal 
or other operations reasonably incident to min-
eral development on, or production from land in-
cluded in a plan of operations. 
‘‘(B) OPERATIONS; OPERATOR.—The terms 
‘operations’ and ‘operator’ have the meanings 
given those terms in section 3809.5 of title 43, 
Code of Federal Regulations (as in effect on the 
date of enactment of this subsection). 
‘‘(C) PLAN
OF
OPERATIONS.—The term 
‘plan of operations’ means a plan of operations 
that an operator must submit and the Secretary 
VerDate Sep 11 2014 
21:49 Nov 25, 2025
Jkt 069200
PO 00000
Frm 00003
Fmt 6652
Sfmt 6203
E:\BILLS\H1366.RH
H1366
kjohnson on DSK7ZCZBW3PROD with $$_JOB
of the Interior or the Secretary of Agriculture, as 
applicable, must approve before an operator may 
begin operations, in accordance with, as applica-
ble— 
‘‘(i) subpart 3809 of title 43, Code of 
Federal Regulations (or successor regula-
tions establishing application and approval 
requirements); and 
‘‘(ii) part 228 of title 36, Code of Fed-
eral Regulations (or successor regulations 
establishing application and approval re-
quirements). 
‘‘(D) PUBLIC LAND.—The term ‘public land’ 
means land owned by the United States that is 
open to location under sections 2319 through 
2344 of the Revised Statutes of the United States 
(30 U.S.C. 22 et seq.), including— 
‘‘(i) land that is mineral-in-character 
(as defined in section 3830.5 of title 43, 
Code of Federal Regulations (as in effect on 
the date of enactment of this subsection)); 
‘‘(ii) nonmineral land (as defined in 
section 3830.5 of title 43, Code of Federal 
Regulations (as in effect on the date of en-
actment of this subsection)); and 
VerDate Sep 11 2014 
21:49 Nov 25, 2025
Jkt 069200
PO 00000
Frm 00004
Fmt 6652
Sfmt 6203
E:\BILLS\H1366.RH
H1366
kjohnson on DSK7ZCZBW3PROD with $$_JOB
‘‘(iii) land where the mineral character 
has not been determined. 
‘‘(2) IN GENERAL.—Notwithstanding subsections 
(a) and (b), where public land is needed by the pro-
prietor of a lode or placer claim for operations in 
connection with any lode or placer claim within the 
proposed plan of operations, the proprietor may— 
‘‘(A) locate and include within the plan of 
operations as many mill site claims under this 
subsection as are reasonably necessary for its op-
erations; and 
‘‘(B) use or occupy public land in accord-
ance with an approved plan of operations. 
‘‘(3) MILL SITES CONVEY NO MINERAL RIGHTS.— 
A mill site under this subsection does not convey min-
eral rights to the locator. 
‘‘(4) SIZE OF MILL SITES.—A location of a sin-
gle mill site under this subsection shall not exceed 5 
acres. 
‘‘(5) MILL SITE AND LODE OR PLACER CLAIMS 
ON SAME TRACTS OF PUBLIC LAND.—A mill site may 
be located under this subsection on a tract of public 
land on which the claimant or operator maintains a 
previously located lode or placer claim. 
VerDate Sep 11 2014 
21:49 Nov 25, 2025
Jkt 069200
PO 00000
Frm 00005
Fmt 6652
Sfmt 6203
E:\BILLS\H1366.RH
H1366
kjohnson on DSK7ZCZBW3PROD with $$_JOB