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STAT.]

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PUBLIC LAW 86-412-APR. 8, 1960

and the appropriation "Operating expenses, Department of Sanitary Engineering" shall be available for the employment of engineering or other professional services by contract or otherwise, and for engineering and incidental expenses. CAPITAL OUTLAY, WASHINGTON AQUEDUCT

For miscellaneous betterments, replacements, and engineering planning of water supply facilities, including continuing raw-water conduit rehabilitation, utility relocations, and plant system rearrangements and interconnections; acquisition by gift, exchange, purchase^ or condemnation of supplementary land; and for developing increased water supply for the District of Columbia and environs in accordance with House Document 480, Seventy-ninth Congress, second session; and necessary expenses incident thereto; including services as authorized by section 15 of the Act of August 2, 1946 (5 U.S.C. 55a), but at rates for individual consultants not in excess of $75 per diem; to remain available until expended, $50,000 (payable from water fund).

60 Stat. 810.

CAPITAL OUTLAY, MOTOR VEHICLE PARKING AGENCY

For construction projects as authorized by the Act of February 16, 1942 (56 Stat. 91), and the Act of August 20, 1958 (72 Stat. 686), including the acquisition of sites, grading, surfacing, and erection of structures incident to the construction of off-street parking facilities; widening and channelizing streets in the vicinity of off-street parking facilities and to relieve traffic congestion caused by a lack of parking facilities; and surveys of parking conditions by contract or otherwise as may be determined by the Commissioners; to remain available until expended, $74,000 (payable from motor vehicle parking fund).

D. C. Code 4 0 805.

GENERAL PROVISIONS SEC. 2. Except as otherwise provided herein, all vouchers covering expenditures of appropriations contained in this Act shall be audited before payment by the designated certifying official and the vouchers as approved shall be paid by checks issued by the designated disbursing oiRcial without countersignature. SEC. 3. Whenever in this Act an amount is specified within an appropriation for particular purposes or object of expenditure, such amount, unless otherwise specified, shall be considered as the maximum amount which may be expended for said purpose or object rather than an amount set apart exclusively therefor. SEC. 4. Appropriations in this Act shall be available, when authorized or approved by the Commissioners, for allowances for privately owned automobiles used for the performance of official duties at 8 cents per mile but not to exceed $25 a month for each automobile, unless otherwise therein specifically provided, except that fifty-two such allowances at not more than $410 each per annum may be authorized or approved by the Commissioners. SEC. 5. Appropriations in this Act shall be available for expenses of travel and for the payment of dues of organizations concerned with the work of the District of Columbia government, when authorized by the Commissioners: Provided, That the total expenditures for this purpose shall not exceed $40,000. SEC. 6. Appropriations in this Act shall be available for services as authorized by section 15 of the Act of August 2, 1946 (5 U.S.C. 55a).

Vouchers.

Maximum amount.

A u to m o b i l e allowances.

Dues.

60 Stat. 310.

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