# § 2105. Limitations on contracts
**(a)** **Time** No payment shall be made pursuant to this subchapter to carry out any research or training over a period in excess of two years, except that with the concurrence of at least two-thirds of the members of the Board of the Center such research or training may be carried out over a period of not to exceed five years.
**(b)** **Items excluded** Assistance pursuant to this subchapter shall not cover the cost of land acquisition, construction, building acquisitions, or acquisition of major equipment.
**(c)** **Former Government employees** No individual formerly in the employment of the Federal Government shall be eligible to receive any assistance pursuant to this subchapter, or to serve as a trustee of the Center in the two-year period following the termination of such employment.
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**Source Credit**: (Pub. L. 94–201, § 6, Jan. 2, 1976, 89 Stat. 1132.)