We found no AAI form called height modification. To change the height of an existing AAI NOC, you file a review once with Undertaking 1D, or appeal to the Appellate Committee. This guide shows which route fits, with steps, documents and a worked example. See also AAI NOC validity and revalidation. AAI NOC Height Modification […]
AAI NOC Validity and Revalidation: Rules, Process and Deadlines
An AAI NOC is valid for 8 years from the date of issue and can be extended to a maximum of 12 years from issue under Rule 9A. Revalidation is not automatic: it needs construction to have started and a request made in time. For the full process, see our guide to AAI NOC for […]