(4) In this article, “area” in relation to a Regulator, means—  (a) in respect of the Environment Agency, England,  (b) in respect of the NRW, Wales,  (c) in respect of the SEPA, Scotland, and  (d) in respect of the chief inspector, Northern Ireland.  CHAPTER 3  Applications, notices, etc.  Submission of applications and notices to Regulators  18. —(1) This article applies to an application, notice or report submitted to a Regulator under  this Order or under an Emissions Monitoring Plan.  (2) An application, notice or report—  (3) The Regulator must set out in the form—  (4) Unless the Regulator agrees otherwise in writing—  (5) Unless the information has been provided in a previous application made to the Regulator,  an application must set out—  (6) Subject to paragraph (7), an application must be accompanied by the charge for the  application set out in the charging scheme published under article 43.  (7) Where an application is submitted electronically, the charge may be sent to the Regulator  separately from the application; and in that case, for the purposes of this Order, the application  must be treated as not being received by the Regulator until the charge is also received.  (8) An application may be withdrawn at any time before it is determined.  (9) A Regulator may, by notice to an applicant, require the applicant to provide such further  information specified in the notice, within the period specified, as the Regulator may require in  order to determine the application.  (10) For the purposes of this Order, the application must be treated as being withdrawn if—  (b) the Regulator gives notice to the applicant that the application is treated as having been  withdrawn.  (ii) on or before such later date as may be agreed with the Regulator, and  (i) before the end of that period, or  (a) the applicant fails to provide that information —  (i) an email address for service, or  (ii) a postal address, including postcode, in the United Kingdom for service.  (b) either—  (a) the name, postal address, including postcode, and telephone number of the applicant, and  (b) if the form is provided by the Regulator for submission through a website, the form must  be submitted through the website and in accordance with any instructions given for  completion and submission.  (a) the form must be submitted to the Regulator electronically and, if the form specifies an  email address for submission, to that address, or  (a) the information required by the Regulator to determine the application, or  (b) the matters required to be included in the notice or report.  (b) unless the Regulator agrees otherwise in writing, must be made on a form provided by the  Regulator for that purpose.  (a) must be in writing, and  12