Unless otherwise provided in this Act [sections
1941 to
1941y of this Appendix], all costs incurred by the Commission or any other department, agency, officer, Government corporation, or instrumentality of the United States pursuant to the provisions of this Act [said sections] shall, so long as synthetic rubber is produced for the account of the Government in the Government-owned rubber-producing facilities, be paid from and charged against the operating income of the Government-owned synthetic rubber program, administered by the operating agency.