Federal Register of Legislation
national measurement act 1960
determination by the national standards commission
Recognized-Value Standard of Measurement of Velocity
In pursuance of paragraph 8A(1)(a) of the National Measurement Act 1960, the National Standards Commission hereby determines that the magnitude of the velocity of electromagnetic waves in vacuum shall be a recognized-value standard of measurement having an exact value of 299 792 458 m.s-1.
Dated this 21st day of March 1985
The common seal of the national T.J. PETRY standards commission was hereto affixed by authority of the Commission in the presence of
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