Where the Authority receives an application for certification, it must make a ... decision by the relevant deadline as to whether to certify the applicant.
The relevant deadline is the end of the 4 months beginning with the day on which the Authority receives the application; but this is subject to any extension under subsection (3).
If, before the deadline mentioned in subsection (2) (or before that deadline as previously extended under this subsection), the Authority asks the applicant or a relevant producer or supplier for information under section 8D(4) or (5), the relevant deadline is the end of the 4 months beginning with the day on which the last of that information is received.
As soon as is reasonably practicable after making the ... decision the Authority must notify the decision and the reasons for it to—
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The Authority must publish its decision to certify or to refuse to certify the applicant, together with the reasons for it, in such manner as it considers appropriate.