Section 47(3)
CAA 1993
Clean Air Act 1993 · United Kingdom
In the application of any provision of this Act to prescribed gases by virtue of regulations under this section, any reference to the rate of emission of any substance shall be construed as a reference to the percentage by volume or by mass of the gas which may be emitted during a period specified in the regulations.
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Source: legislation.gov.uk · retrieved 2026-07-30