Limiting Aircraft Data Displayed Via Aircraft Situation Display to Industry (ASDI) (formally the Block Aircraft Registration Request (BARR) Program):

On November 18, 2012, the President signed into law H.R. 2112, the "Consolidated and Further Continuing Appropriations Act, 2012”, and was further continued in FY2015. This statue changes the previous entitled Certified Security Concerns Blocking policy in which aircraft owners or operators can limit the dissemination of their aircraft registration in the FAA ASDI data feed. The FAA will still accept and implement all direct requests from private aircraft owners or operators to block their aircraft data from public display in ASDI, including those not accompanied by a Certified Security Concern.

On August 21, 2013, the FAA issued a final notice, FR Doc. 2013-20375, in the Federal Register for the process of limiting the display of ASDI data. These procedures took effect on September 20, 2013. This was formally known as the Block Aircraft Registration Request (BARR) program previously administered by the National Business Aviation Association (NBAA).

It is the FAA's intention to make the aircraft blocking process as simple as possible. As a result, and until further notice of an updated Federal Register publication, the process related to aircraft blocking and unblocking requests will require an aircraft owner or operator to submit a blocking request specifying; the registration number of the aircraft, whether the requestor is an owner or operator of the aircraft, a telephone number and/or electronic mail address to which the FAA can direct questions about the request, and whether the requestor desires ASDI blocking at the (a) the FAA data source or at the (b) ASDI subscriber level. Any requests that do not specify which of these levels, ((a) or (b) above) that is preferred, will be blocked at the FAA data source. These procedures for blocking will be followed under the current statute until ASDI is replaced sometime in 2016.

Block Lists are implemented on the first Thursday of each month, and the request cutoff date is the 15th of the preceding month. ASDI block requests may still be submitted via electronic mail at:, or via regular mail to:

FAA ASDI Blocking Requests
ATO System Operations Services, AJR-0
Wilber Wright Building, Room 3E1500
600 Independence Avenue SW
Washington, DC 20597

For further information, please contact Mr. William Blacker by telephone at (202) 267-0346 or by email at,