# The Merchant Shipping (Radio Installations) Regulations 1998, Paragraph 1: Daily

Extent: E+W+S+N.I.

(a) The proper functioning of the DSC facilities shall be tested at least once each day, without radiation of signals, by use of the means provided on the equipment.
(b) Batteries providing a source of energy for any part of the radio installations shall be tested daily and, where necessary, brought up to the fully charged condition.

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Source: https://www.legislation.gov.uk/uksi/1998/2070/schedule/2/paragraph/1 (the official version)
Page: https://openlegislation.uk/merchant-shipping-radio-installations-regulations-1998/schedule-2/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.