An applicant for the modification or discharge of a planning obligation shall give notice of the application to any person (other than the applicant) against whom, on the day 21 days before the date of the application, the planning obligation is enforceable and whose name and address is known to the applicant.

In order to comply with paragraph (1), the applicant shall take reasonable steps to ascertain the name and address of every such person.

Where the names and addresses of all such persons are not known to the applicant after he has taken reasonable steps to ascertain that information, he shall, during the 21 day period immediately preceding the application, publish notice of the application in a local newspaper circulating in the locality of the land to which the application relates.

The notice required to be served or published by this regulation shall be in the form set out in Part 1 of the Schedule and shall invite representations on the application to be made to the local planning authority within 21 days of the date on which the notice is served or published, as the case may be.

An application for the modification or discharge of a planning obligation shall be accompanied by a certificate, in the appropriate form set out in Part 2 of the Schedule, certifying that the requirements in the preceding provisions of this regulation have been satisfied.