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ASR FAQ
ASR Number FAQs

1. Why do I need to put latitude/longitude information on the second location site if I have a tower registration number? Why can't I just put the Antenna Structure Registration number and have the system pull the information?

2. How do I change the ASR number if it is grayed out on the screen?

3. What happens if the registration number I supply is invalid, or I make a typo?

4. If instead of providing a registration number I answer "N/A" (i.e., registration is not required), then what does ULS do?

Why do I need to put latitude/longitude information on the second location site if I have a tower registration number? Why can't I just put the Antenna Structure Registration number and have the system pull the information?

ULS is programmed to pull Antenna Structure Registration (ASR) information for transmit locations only. Since the FCC required only coordinates and AMSL for receive locations, programming was not included to pull ASR information for receivers.

How do I change the ASR number if it is grayed out on the screen?

When filing electronically, ULS will gray out fields that you cannot answer based on the type of filing or previous data entries. When a transmitter location is chosen for modification, ULS will allow data entry in the ASR number field if an ASR number is already present for that location. If there is no ASR number for that location, the field will be grayed out until you specify that the site has a registered antenna structure.

What happens if the registration number I supply is invalid, or I make a typo?

ULS will tell you if the number provided is invalid, and, consequently, it will not pre-fill any data. If you make a typo and accidentally enter a valid number, then ULS will pre-fill data for the number that you entered. At that point, you should realize that it is the wrong structure and then can change the registration number.

If instead of providing a registration number I answer "N/A" (i.e., registration is not required), then what does ULS do?

Generally, registration is not required for antenna structures less than 60.96 meters (200 feet) above the ground that are far from public-use airports. The registration criteria are described in detail on the FCC's website at http://www.fcc.gov/wtb/antenna. If registration is not required for the Location in question, then you should select "N/A," provide the other Location data requested by the form (e.g., coordinates, elevation, height above ground) and hit "Save." ULS will then make sure that the structure is not more than 60.96 meters (200 feet) above ground and-using the TOWAIR software-make sure that the structure does not exceed the slope (defined in Part 17 of our Rules) extending from nearby public-use airports. If the data passes both of these tests, then the Location data will be saved and is then ready for submission to the Wireless Telecommunications Bureau.

If the Location data fails either of the tests described above, then ULS will provide a descriptive error message when you try to submit the application. If you get an error message, then your only option is to hit the "Return" button. The application may not be submitted until you either change the data or provide additional information regarding your "N/A" response.

Specifically, 47 C.F.R. § 17.14 provides three exceptions to the registration requirements such that-even though a structure may fail one of the tests above-registration is not required. These exceptions are "shielding," the "twenty-foot rule," and "fixed by function" at an airport. Note that ULS will generally be able to verify the "twenty-foot rule" scenarios online based on the structure type and height information provided, and therefore will usually not return an error message. As long as you do not get an error message, there is no need for you to go through the procedure below, which describes how to file an application that claims one of these exceptions.

For example, suppose that you want to claim shielding of a structure that is well over 60.96 meters (200 feet) above ground because it is close to several buildings that are much taller than the antenna structure itself. Submit the Location data and click on the "Attachments" button at the bottom of the screen to upload a showing (i.e., a brief) that supports your claim of exception. Choose Attachment Type = "T-47 C.F.R. 17.14." Then upload the showing. Note that the Wireless Telecommunications Bureau's staff will review each showing of this type, and, if the application is defective, the staff will dismiss the application.

Last reviewed/updated on 8/28/01.