[Code of Federal Regulations]
[Title 14, Volume 2]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR91.139]

[Page 193]
 
                     TITLE 14--AERONAUTICSAND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION 
                               (CONTINUED)
 
PART 91--GENERAL OPERATING AND FLIGHT RULES--Table of Contents
 
                         Subpart B--Flight Rules
 
Sec. 91.139  Emergency air traffic rules.

    (a) This section prescribes a process for utilizing Notices to 
Airmen (NOTAMs) to advise of the issuance and operations under emergency 
air traffic rules and regulations and designates the official who is 
authorized to issue NOTAMs on behalf of the Administrator in certain 
matters under this section.
    (b) Whenever the Administrator determines that an emergency 
condition exists, or will exist, relating to the FAA's ability to 
operate the air traffic control system and during which normal flight 
operations under this chapter cannot be conducted consistent with the 
required levels of safety and efficiency--
    (1) The Administrator issues an immediately effective air traffic 
rule or regulation in response to that emergency condition; and
    (2) The Administrator or the Associate Administrator for Air Traffic 
may utilize the NOTAM system to provide notification of the issuance of 
the rule or regulation.

    Those NOTAMs communicate information concerning the rules and 
regulations that govern flight operations, the use of navigation 
facilities, and designation of that airspace in which the rules and 
regulations apply.
    (c) When a NOTAM has been issued under this section, no person may 
operate an aircraft, or other device governed by the regulation 
concerned, within the designated airspace except in accordance with the 
authorizations, terms, and conditions prescribed in the regulation 
covered by the NOTAM.