PUBLIC LAWS-CH. 506-AUG. 24 , 1949 46 Stat. 701. 19 U. . c. g§1336- 1338. 48 Stat. 58. 16U.S.C.§§831- 831dd; Supp. II , §831h- 2 et seq. any member of the Tariff Commission who shall hereafter participate in any proceedings under sections 336, 337, and 338 of the Tariff Act of 1930, wherein he or any member of his family has any special, direct, and pecuniary interest, or in which he has acted as attorney or special representative. TENNESSEE VALLEY AUTHORITY For the purpose of carrying out the provisions of the Tennessee Valley Authority Act of 1933, as amended (16 U. S . C ., ch. 12A), including purchase (not to exceed one) and hire, maintenance, repair, and operation of aircraft; the purchase (not to exceed one hundred and twelve for replacement only) and hire of passenger motor vehicles, $49,359,150 to remain available until expended, and to be available for the payment of obligations chargeable against prior appropriations. THE TAX COURT OF THE UNITED STATES Salaries and expenses: For necessary expenses, including printing and binding and contract stenographic reporting services, $800,000: Travel expenses. Provided, That travel expenses of the judges shall be paid upon the written certificate of the Judge. UNITED STATES MARITIME COMMISSION 49 Stat. 1985. 46U.S.C.§1101e seq.; Supp. II, § 1116a e seq. 60 Stat. 810 . Audit of agents' accounts. 49 Stat. 19958 2008. 46U.8.C. §il5l- 1161. 1191 -1204; Supp. II. 1152et seq. Ante, p. 56. 62 Stat. 1198. Contract authority. Restriction on new construction. "Budget." Availability of funds. Salaries and expenses: For expenses necessary for carrying into effect the Merchant Marine Act, 1936, and other laws administered by the United States Maritime Commission, $63,014,174, within limita- tions as follows: Administrative expenses, including personal services in the District of Columbia; printing and binding; not to exceed $2,000 for news- papers and periodicals; not to exceed $17,700 for services as author- ized by section 15 of the Act of August 2, 1946 (5 U. S. C. 55a); and not to exceed $1,125 for entertainment of officials of other countries when specifically authorized by the Chairman; in all, not to exceed $8,950,142, together with not to exceed $586,648 of the unobligated balance in the Federal ship mortgage insurance fund, revolving fund: Provided,That the Maritime Commission is authorized to dispense with the administrative audit of agents' accounts covering voyages beginning prior to April 1, 1949; New ship construction, including reconditioning and betterment, as authorized by title V of the Merchant Marine Act, 1936 (except, for construction of two prototype vessels under title VII of said Act), $26,875,000, of which $12,000,000 is for payment of obligations incurred under authority granted under this head in the Supplemental Inde- pendent Offices Appropriation Act, 1949, to enter into contracts for new ship construction in an amount not to exceed $75,000,000; and, in addition, the Commission is authorized to enter into contracts for new ship construction in an amount not to exceed $50,000,000: Pro- vided, That no part of this contract authority shall be used to start any new ship construction for which an estimate was not included in the budget for the current fiscal year, nor to start any new ship construction the currently estimated cost of which exceeds by 10 per centum the estimated cost included therefor in such budget unless the Director of the Bureau of the Budget specifically approves the start of such ship construction and the Director shall submit forthwith a detailed explanation thereof to the Committees on Appropriations of the Senate and of the House of Representatives; and, as used herein, the term "budget" includes the detailed justification support- ing the budget estimates: Provided further, That not to exceed 650 [63 STAT.