14 C.F.R. § 1260.115 Metric system of measurement.
Title 14 - Aeronautics and Space
The Metric Conversion Act, as amended by the Omnibus Trade and Competitiveness Act (15 U.S.C. 205) declares that the metric system is the preferred measurement system for U.S. trade and commerce. The Act requires each Federal agency to establish a date or dates in consultation with the Secretary of Commerce, when the metric system of measurement will be used in the agency's procurements, grants, and other business-related activities. Metric implementation may take longer where the use of the system is initially impractical or likely to cause significant inefficiencies in the accomplishment of federally-funded activities. NASA follows the provisions of Executive Order 12770, “Metric Usage in Federal Government Programs.” NASA's policy with respect to the metric measurement system is stated in NASA Policy Directive (NPD) 8010.2, Use of the Metric System of Measurement in NASA Programs.
Title 14: Aeronautics and Space
PART 1260—GRANTS AND COOPERATIVE AGREEMENTS
Subpart B—Uniform Administrative Requirements for Grants and Cooperative Agreements With Institutions of Higher Education, Hospitals, and Other Non-Profit Organizations
Pre-Award Requirements
§ 1260.115 Metric system of measurement.

