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Modifying a Registration in the Antenna Structure Registration (ASR) System

Antenna Structure Registration - Help

This article provides information on modifying a registration in the Antenna Structure Registration (ASR) system. You would modify a registration to change technical data about the structure. For example, increasing the height of the structure, changing the obstruction marking/lighting, correcting the coordinates or the FAA Study Number are all things that are filed on a modification application. A request to modify a registration may require Environmental Notice.

Changes to administrative information on your registration such as mailing address, phone number, or e-mail address are handled by filing an Administrative Update.

Steps to Filing a Request to Modify a Registration in ASR
  1. Log in to ASR Online Filing with your FCC Registration Number (FRN) and password.
  2. Click Manage Your ASR Numbers.
  3. Select the purpose MD - Modification of a Antenna Structure Registration and click on the Continue button.
  4. Click the registration number you would like to update and click the Continue button at the bottom of the screen.
  5. Click Save and Continue to navigate through the application.
  6. Sign your application and click Submit Application.

    Note: If your application requires environmental notice, you will need to sign and submit the application both when you complete Part I prior to environmental notice and again when you return to the application to complete Part 2.

FAQs – Filing a Request to Modify a Registration in ASR

Will I owe a filing fee?


Why can’t a see the registrations I want to update in step 4?

There are a few possibilities:

  • Registrations must be in a Constructed status in order to file a modification. This policy is in place to promote air safety. If you need to modify a tower prior to it being constructed, you will need to cancel the existing tower registration and file a new tower registration.
  • The registration must be linked to the same FRN you used to log in to ASR Online Filing.
  • If you previously started to file a modification application and did not complete the filing, it could be in a list of Unsubmitted Applications.

How do I know if my application is received at the FCC?

Applications will appear immediately in ASR Application Search. Enter the file number in the ASR Application Search to find your application.


Last Updated: 06/21/2012




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