(1) The Regulator may amend the rights, conditions and procedures concerning the general authorisation, licences and rights of use for numbers provided that any such amendments may only be made in objectively justified cases and in a proportionate manner.
(2) A road authority may amend the conditions of a consent under section 53 of the Act of 2002 provided that such amendments may only be made in objectively justified cases and in a proportionate manner.
(3) A planning authority (within the meaning of the Act of 2000) may amend the conditions of a licence under section 254 of the Act of 2000 for the establishment of overground electronic communications infrastructure and any associated physical infrastructure provided that such amendment may only be made in objectively justified cases and in a proportionate manner.
(4) Before making any amendment under this Regulation the Regulator, a road authority or a planning authority, as the case may be, shall -
(a) give notice in such mann