PUBLIC LAWS--CH. 543 -JULY 8, 1946 Estimates to accom- pany bids. Inductees, pay and expenses. Canal Zone. Citizenship require- ment for civilian per- sonnel. Employment of Panamanian citizens. 48 U. . . 1307 note. Employees with 15 or more years of service. Selection of per- sonnel. Hours of employ- ment; pay rates. Applicability of sec- tion. Suspension of com- pliance in emergency, etc. Statutory limit on repairs, etc. Persons engaging, etc., in strikes against or advocating over- throw of U. S. Gov- ernment. Affidavit. SEC. 105. No funds herein appropriated shall be available to pay a contractor upon any contract for a naval vessel entered into under authority of this Act unless, at the time of filing his bid, he shall also file the estimates upon which such bid was based. SEC. 106. The appropriations available to the Navy Department and the naval service shall be available for the pay and other expenses of men inducted into the Navy and Marine Corps in accordance with law. SEC. 107. No part of any appropriation contained in this Act shall be used directly or indirectly, except for temporary employment in case of emergency, for the payment of any civilian for services ren- dered by him on the Canal Zone while occupying a skilled, technical, clerical, administrative, executive, or supervisory position unless such person is a citizen of the United States of America or of the Republic of Panama: Provided,however, (1) That, notwithstanding the pro- vision in the Act approved August 11, 1939 (53 Stat. 1409), limiting employment in the above-mentioned positions to citizens of the United States from and after the date of the approval of said Act, citizens of Panama may be employed in such positions; (2) that at no time shall the number of Panamanian citizens employed in the above-mentioned positions exceed the number of citizens of the United States so employed, if United States citizens are available in continental United States or on the Canal Zone; (3) that nothing in this Act shall pro- hibit the continued employment of any person who shall have ren- dered fifteen or more years of faithful and honorable service on the Canal Zone; (4) that in the selection of personnel for skilled, tech- nical, administrative, clerical, supervisory, or executive positions, the controlling factors in filling these positions shall be efficiency, experi- ence, training, and education; (5) that all citizens of Panama and the United States rendering skilled, technical, clerical, administrative executive, or supervisory service on the Canal Zone under the terms of this Act (a) shall normally be employed not more than forty hours per week; (b) may receive as compensation equal rates of pay based upon rates paid for similar employment in continental United States plus 25 per centum; (6) this entire section shall apply only to per- sons employed in skilled, technical, clerical, administrative, executive, or supervisory positions on the Canal Zone directly or indirectly by any branch of the United States Government or by any corporation or company whose stock is owned wholly or in part by the United States Government: Provided further, That the President may sus- pend, from time to time in whole or in part, compliance with this sec- tion in time of war or national emergency if he should deem such course to be in the public interest: Provided further, That the Presi- dent may, if he finds it necessary because of a shortage of housing, suspend, for the fiscal year 1947, the application of those portions of this section which require the employment of citizens of the Republic of Panama or of the United States in skilled, technical, clerical, admin- istrative, executive, or supervisory positions. SEC. 108. The Secretary is authorized where necessary to exceed the statutory limit on repairs and alterations to vessels during the fiscal year 1947. SEC. 109. No part of any appropriation contained in this Act shall be used to pay the salary or wages of any person who engages in a strike against the Government of the United States or who is a mem- ber of an organization of Government employees that asserts the right to strike against the Government of the United States, or who advocates, or is a member of an organization that advocates, the overthrow of the Government of the United States by force or vio- lence: Provided, That for the purposes hereof an affidavit shall be considered prima facie evidence that the person making the affidavit has not contrary to the provisions of this section engaged in a strike 496 [60 STAt.