Regulation 4 Terms, provisions and limitations
The terms, provisions and limitations to which the exemption provided for in regulation 3 shall be subject are that the station or apparatus for wireless telegraphy shall not –
(a)
infringe any requirements for the time being applied to it by or under any enactment for the purpose of preventing it from causing interference with any wireless telegraphy; or
(b)
cause undue interference with any wireless telegraphy.