Page 5 TITLE 30—MINERAL LANDS AND MINING § 6

merce jointly: Provided further, That all Federal

claims for reimbursement under this section

shall automatically expire twenty years from

the date of approval of the contracts entered

into, in accordance with the provisions thereof,

unless sooner terminated by agreement between

the owners or lessees of the potash mineral

rights and oil and the Secretary of the Interior

and the Secretary of Commerce jointly: Provided

further, That said contract or contracts shall not

restrict the Secretary of the Interior and the

Secretary of Commerce jointly in the choice of

drilling locations within the property or in the

conduct of the exploratory operations, so long

as such selection or conduct do not interfere unreasonably with the surface of the land or with

the improvements thereof, and said contract or

contracts shall provide that the United States

shall not be liable for damages on account of

such reasonable use of the surface as may be

necessary in the proper conduct of the work.

(June 25, 1926, ch. 674, §2, 44 Stat. 768; Mar. 3,

1927, ch. 356, 44 Stat. 1388.)

AMENDMENTS

1927—Act Mar. 3, 1927, amended provisions generally.

§ 4c. Investigation of sub-bituminous and lignite

coal

The United States Bureau of Mines, under the

general direction of the Secretary of the Interior, is authorized to conduct investigations,

studies, and experiments on its own initiative

and in cooperation with individuals, State institutions, laboratories, and other organizations,

with a view to (1) the development of a commercially practicable carbonization method of processing sub-bituminous and lignite coal so as to

convert such coal into an all-purpose fuel, to

provide fertilizers, and obtain such other byproducts thereof as may be commercially valuable; (2) the development of efficient methods,

equipment, and devices for burning lignite or

char therefrom; and (3) determining and developing methods for more efficient utilization of

such sub-bituminous and lignite coal for purposes of generating electric power.

(May 15, 1936, ch. 397, §1, 49 Stat. 1275; Pub. L.

102–285, §10(b), May 18, 1992, 106 Stat. 172.)

CHANGE OF NAME

‘‘United States Bureau of Mines’’ substituted in text

for ‘‘Bureau of Mines’’ pursuant to section 10(b) of Pub.

L. 102–285, set out as a note under section 1 of this title.

TRANSFER OF FUNCTIONS

See note set out under section 1 of this title.

SECTION REFERRED TO IN OTHER SECTIONS

This section is referred to in section 4d of this title.

§ 4d. Plants, machinery, and equipment

The United States Bureau of Mines is further

authorized, under the general direction of the

Secretary of the Interior, to erect such plants,

construct and purchase such machinery and

equipment, and to take such other steps as it

may deem necessary and proper to effectuate

the purposes of section 4c of this title.

(May 15, 1936, ch. 397, §2, 49 Stat. 1275; Pub. L.

102–285, §10(b), May 18, 1992, 106 Stat. 172.)

CHANGE OF NAME

‘‘United States Bureau of Mines’’ substituted in text

for ‘‘Bureau of Mines’’ pursuant to section 10(b) of Pub.

L. 102–285, set out as a note under section 1 of this title.

TRANSFER OF FUNCTIONS

See note set out under section 1 of this title.

§ 4e. Omitted

CODIFICATION

Section, act May 15, 1936, ch. 397, §3, 49 Stat. 1275, appropriated $100,000 for carrying out provisions of sections 4c and 4d of this title to be expended during certain fiscal years, the last ending June 30, 1939.

§§ 4f to 4o. Transferred

CODIFICATION

Sections 4f to 4o were transferred to sections 451 to

460, respectively, of this title, and subsequently repealed by Pub. L. 91–173, title V, §509, Dec. 30, 1969, 83

Stat. 803.

§ 5. Reports of investigations

The Director of the United States Bureau of

Mines shall prepare and publish, subject to the

direction of the Secretary of the Interior, under

the appropriations made from time to time by

Congress, reports of inquiries and investigations, with appropriate recommendations of the

bureau, concerning the nature, causes, and prevention of accidents, and the improvement of

conditions, methods, and equipment, with special reference to health, safety, and prevention

of waste in the mining, quarrying, metallurgical, and other mineral industries; the use of

explosives and electricity, safety methods and

appliances, and rescue and first-aid work in said

industries; the causes and prevention of mine

fires; and other subjects included under the provisions of sections 1, 3, and 5 to 7 of this title.

(May 16, 1910, ch. 240, §3, 36 Stat. 370; Feb. 25,

1913, ch. 72, §3, 37 Stat. 681; Ex. Ord. No. 4239,

June 4, 1925; Ex. Ord. No. 6611, Feb. 22, 1934; Pub.

L. 102–285, §10(b), May 18, 1992, 106 Stat. 172.)

CHANGE OF NAME

‘‘United States Bureau of Mines’’ substituted in text

for ‘‘Bureau of Mines’’ pursuant to section 10(b) of Pub.

L. 102–285, set out as a note under section 1 of this title.

TRANSFER OF FUNCTIONS

See note set out under section 1 of this title.

SECTION REFERRED TO IN OTHER SECTIONS

This section is referred to in sections 1, 3, 6, 7, 8 of

this title; title 42 sections 5821, 7152.

§ 6. Personal interest of director and members of

Bureau in mines

In conducting inquiries and investigations authorized under sections 1, 3, and 5 to 7 of this

title neither the director nor any member of the

United States Bureau of Mines shall have any

personal or private interest in any mine or the

products of any mine under investigation, or

shall accept employment from any private party

for services in the examination of any mine or

private mineral property, or issue any report as

to the valuation or the management of any mine

or other private mineral property. Nothing here-