Regulation 4 Terms, provisions and limitations
The exemption provided for in regulation 3 shall be subject to the terms, provisions and limitations that—
(a)
the apparatus shall comply with the Department of Trade and Industry Performance Specification MPT 1371 as first published in May 1989 and as revised and reprinted in July 1992;
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and
(b)
the apparatus shall not cause or contribute to any undue interference with any wireless telegraphy.