754 

14 CFR Ch. I (1–1–19 Edition) 

§ 91.227 

section must be made to the ATC facil-
ity having jurisdiction over the con-
cerned airspace within the time periods 
specified as follows: 

(1) For operation of an aircraft with 

an inoperative ADS–B Out, to the air-
port of ultimate destination, including 
any intermediate stops, or to proceed 
to a place where suitable repairs can be 
made or both, the request may be made 
at any time. 

(2) For operation of an aircraft that 

is not equipped with ADS–B Out, the 
request must be made at least 1 hour 
before the proposed operation. 

(h) The standards required in this 

section are incorporated by reference 
with the approval of the Director of the 
Office of the Federal Register under 5 
U.S.C. 552(a) and 1 CFR part 51. All ap-
proved materials are available for in-
spection at the FAA’s Office of Rule-
making (ARM–1), 800 Independence Av-
enue, SW., Washington, DC 20590 (tele-
phone 202–267–9677), or at the National 
Archives and Records Administration 
(NARA). For information on the avail-
ability of this material at NARA, call 
202–741–6030, or go to 

http:// 

www.archives.gov/federal

l

register/ 

code

l

of

l

federal

l

regulations/ 

ibr

l

locations.html. 

This material is also 

available from the sources indicated in 
paragraphs (h)(1) and (h)(2) of this sec-
tion. 

(1) Copies of Technical Standard 

Order (TSO)–C166b, Extended Squitter 
Automatic Dependent Surveillance- 
Broadcast (ADS–B) and Traffic Infor-
mation Service-Broadcast (TIS–B) 
Equipment Operating on the Radio 
Frequency of 1090 Megahertz (MHz) 
(December 2, 2009) and TSO–C154c, Uni-
versal Access Transceiver (UAT) Auto-
matic Dependent Surveillance-Broad-
cast (ADS–B) Equipment Operating on 
the Frequency of 978 MHz (December 2, 
2009) may be obtained from the U.S. 
Department of Transportation, Subse-
quent Distribution Office, DOT Ware-
house M30, Ardmore East Business Cen-
ter, 3341 Q 75th Avenue, Landover, MD 
20785; telephone (301) 322–5377. Copies of 
TSO –C166B and TSO–C154c are also 
available on the FAA’s Web site, at 

http://www.faa.gov/aircraft/air

l

cert/ 

design

l

approvals/tso/. 

Select the link 

‘‘Search Technical Standard Orders.’’ 

(2) Copies of Section 2, Equipment 

Performance Requirements and Test 
Procedures, of RTCA DO–260B, Min-
imum Operational Performance Stand-
ards for 1090 MHz Extended Squitter 
Automatic Dependent Surveillance- 
Broadcast (ADS–B) and Traffic Infor-
mation Services-Broadcast (TIS–B), 
December 2, 2009 (referenced in TSO– 
C166b) and Section 2, Equipment Per-
formance Requirements and Test Pro-
cedures, of RTCA DO–282B, Minimum 
Operational Performance Standards for 
Universal Access Transceiver (UAT) 
Automatic Dependent Surveillance- 
Broadcast (ADS–B), December 2, 2009 
(referenced in TSO C–154c) may be ob-
tained from RTCA, Inc., 1828 L Street, 
NW., Suite 805, Washington, DC 20036– 
5133, telephone 202–833–9339. Copies of 
RTCA DO–260B and RTCA DO–282B are 
also available on RTCA Inc.’s Web site, 
at 

http://www.rtca.org/onlinecart/ 

allproducts.cfm. 

[Doc. No. FAA–2007–29305, 75 FR 30193, May 
28, 2010; Amdt. 91–314–A, 75 FR 37712, June 30, 
2010; Amdt. 91–316, 75 FR 37712, June 30, 2010; 
Amdt. 91–336, 80 FR 6900, Feb. 9, 2015; Amdt. 
91–336A, 80 FR 11537, Mar. 4, 2015] 

§ 91.227

Automatic Dependent Surveil-

lance-Broadcast (ADS–B) Out equip-
ment performance requirements. 

(a) 

Definitions. 

For the purposes of 

this section: 

ADS–B Out 

is a function of an air-

craft’s onboard avionics that periodi-
cally broadcasts the aircraft’s state 
vector (3-dimensional position and 3-di-
mensional velocity) and other required 
information as described in this sec-
tion. 

Navigation Accuracy Category for Posi-

tion 

(

NAC

P

) specifies the accuracy of a 

reported aircraft’s position, as defined 
in TSO–C166b and TSO–C154c. 

Navigation Accuracy Category for Ve-

locity 

(

NAC

V

) specifies the accuracy of a 

reported aircraft’s velocity, as defined 
in TSO–C166b and TSO–C154c. 

Navigation Integrity Category (NIC) 

specifies an integrity containment ra-
dius around an aircraft’s reported posi-
tion, as defined in TSO–C166b and TSO– 
C154c. 

Position Source 

refers to the equip-

ment installed onboard an aircraft used 
to process and provide aircraft position 

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