(1) The concurrence of a person (other than the Authority) authorised to concur in the registration of a burden shall be given by written assent and the assent shall be filed.
(2) The assent may be given in the instrument creating the burden. Otherwise, it shall be in Form 48 or included in Form 17.
(3) The entry in the register of a burden in the registration of which the Authority is authorised to concur shall be the evidence of its concurrence in the registration.