13(1)An application to vary a special procedure licence by adding a description of special procedure the performance of which is to be authorised by the licence—
(a)must specify the procedure concerned, and
(b)is to be treated for the purposes of this Part as being an application for the issue of a special procedure licence authorising the performance of that procedure (and the date of the variation is to be treated, for the application of this Part in respect of that procedure, as being the date of the issue of a licence authorising the performance of the procedure).
(2)But sub-paragraph (1)(b) does not apply for the purposes of the determination of the licence period.