radio duties
as defined in Directive 2008/106/EC of the European Parliament and of the Council of 19…, Article 1, point (22) (Definitions)
as appropriate, watchkeeping and technical maintenance and repairs conducted in accordance with the Radio Regulations, the International Convention for the Safety of Life at Sea, 1974 (SOLAS 74) and, at the discretion of each Member State, the relevant recommendations of the IMO, in their up-to-date versions;