Document ID: FAA-2013-0259-0989
Agency: faa
Document Type: Rule
Title: Change in EST Usage in Notice to Airmen
Posted Date: 2015-10-05T04:00Z

[Federal Register Volume 80, Number 192 (Monday, October 5, 2015)]
[Rules and Regulations]
[Page 60033]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-25192]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Chapter I

Change in EST Usage in Notice to Airmen (NOTAM)

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Policy change.

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SUMMARY: This document provides clarity and guidance regarding the use 
of the contraction ``EST'', which stands for ``Estimated'', when 
appended to the end of validity time in a NOTAM. The FAA is taking this 
action to align NOTAM policy with International Civil Aviation 
Organization (ICAO) standards and recommended practices.

DATES: Effective date: December 15, 2015.

FOR FURTHER INFORMATION CONTACT:  Gary Bobik (202-267-6524; 
gary.ctr.bobik@faa.gov) or Lynette Jamison (540-422-4761; 
lynette.m.jamison@faa.gov)

SUPPLEMENTARY INFORMATION:

Background

    The Federal Aviation Administration (FAA) Flight Services is 
revising FAA Order JO 7930.2, Notices to Airmen (NOTAM), which is 
scheduled to become effective no later than December 15, 2015.
    The following paragraphs will be incorporated into the next 
revision of FAA Order JO 7930.2.
    Paragraph 4-2-1a-14, Start of Activity/End of Validity, is ``a 10-
digit date-time group (YYMMDDHHMM) used to indicate the time at which 
the NOT AM comes into force (the date/time a condition will exist or 
begin) and the time at which the NOTAM ceases to be in force and 
becomes invalid (the expected return to service, return to normal 
status time, or the time the activity will end).''
    Paragraph 4-2-1a-14(a) further specifies, that if the NOTAM 
duration is expected to return to service prior to the End of Validity 
time, express the time by using a date- time group followed immediately 
by EST. The NOTAM Originator must cancel or replace any NOTAM that 
includes an EST before the NOTAM reaches its End of Validity time, as 
the NOTAM will now auto expire at the end of validity time, regardless 
of EST.

    Issued in Washington, DC, on September 23, 2015.
Ernie Bilotto,
Manager, U.S. NOTAMs.
[FR Doc. 2015-25192 Filed 10-2-15; 8:45 am]
 BILLING CODE 4910-13-P