(2) Subject to paragraph (3), in the event that the discharging authority does not determine an  application within the period set out in sub-paragraph (1), the discharging authority is taken to  have granted all parts of the application (without any condition or qualification) at the end of that  period.  (3) In determining any application made to the discharging authority for any consent, agreement  or approval required by a requirement contained in Part 1 of this Schedule, the discharging  authority may—  and where consent, agreement or approval is refused or granted subject to conditions the  discharging authority must provide its reasons for that decision with the notice of the decision.  18. —(1) In relation to any part of an application made under this Schedule, the discharging  authority has the right to request such further information from the undertaker as is necessary to  enable the discharging authority to consider the application.  (2) If the discharging authority considers that further information is necessary and the  requirement concerned contained in Part 1 of this Schedule does not specify that consultation with  a consultee is required, the discharging authority must, within 10 business days of receipt of the  application, notify the undertaker in writing specifying the further information required.  (3) If the requirement concerned contained in Part 1 of this Schedule specifies that consultation  with a consultee is required, the discharging authority must issue the application to the consultee  within five business days of receipt of the application, and notify the undertaker in writing  specifying any further information requested by the consultee within five business days of receipt  of such a request.  (4) If the discharging authority does not give the notification within the period specified in sub- paragraph (2) or (3) it (and the consultee, as the case may be) is deemed to have sufficient  information to consider the application and is not entitled to request further information without  the prior agreement of the undertaker.  19. —(1) Where the undertaker makes an application to the discharging authority, the undertaker  may appeal to the Secretary of State in the event that—  Further information regarding requirements  Appeals  59 (e) on receipt of any further information requested, the discharging authority notifies the  undertaker that the information provided is inadequate and requests additional  information which the undertaker considers is not necessary for consideration of the  application.  (d) on receipt of a request for further information pursuant to paragraph 18 of this Part of this  Schedule, the undertaker considers that either the whole or part of the specified  information requested by the discharging authority is not necessary for consideration of  the application; or  (c) the discharging authority issues a notice further to sections 60 or 61 of the Control of  Pollution Act 1974;  (b) the discharging authority grants an application subject to conditions;  (i) a document referred to in Part 1 of this Schedule; or  (ii) a document referred to in any requirement contained in Part 1 of this Schedule;  (a) the discharging authority refuses an application for any consent, agreement or approval  required by—  (a) give or refuse its consent, agreement or approval; or  (b) give its consent, agreement or approval subject to reasonable conditions, 