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28 September 1954
1 January 1955
1 January 1955
4 1 Fourth Session of
the Meteorology
Division
Introduction of Standards and Recommended Practices governing the
obligations of Contracting States relating to the establishment of
meteorological organization in each State, adequate to satisfy Articles 28 and
37 of the Convention; consequential change of title of Annex 3 to read
International Standards and Recommended Practices - Meteorology.
1 April 1955
1 August 1955
1 January 1956
42 Second Air
(4th Edition) Navigation
Conference
Simplification of the detailed specifications for the method of determining
the position in the AIREP and POMAR forms of air-report.
8 May 1956
1 September 1956
1 December 1956
43 Third Air
Navigation
Conference
Introduction of the term "SIGMET information" to replace the terms
"advisory message" and "warning message"; amendment of the table for
"State of Sea" in the POMAR code.
13 June 1957
1 October 1957
1 December 1957
44 Rules of the Air and
Air Traffic Services1
Changes in the list of elements in Section 1 (Position report) of the AIREP
form of air-report - deletion of the element "Flight conditions" and
18 February 1960
1 May 1960
Search and Rescue 1 August 1960
Divisions
amendment of the last element in the section to read 'Next position and time
over".
45 Rules of the Air and
Air Traffic Services1
Search and Rescue
Divisions
Amendment of model AIREP and POMAR fonns of air-report consequential
to Amendment 44.
18 February 1960
-
1 August 1960
46 World
Meteorological
Organization
Updating of aeronautical meteorological figure codes, introduced by WMO,
as of 1 January 1960.
8 June 1960
-
8 June 1960
Annex 3 - Meteorological Service for International Air Navigation Foreword
Adopted/approved
Effective
Amendmenr(s) Source(s) Applicable
47 Fifth Session of the
(5th Edition) Meteorology
Division
2 December 1960
1 April 1961
1 July 1961
Amendment to the procedures for aircraft meteorological observations and
reports, modifying those for special observations and introducing
reauirements for additional observations: deletion of the POMAR form of
air-report; elimination of flight meteorological watch and the introduction of
en-route forecast service to supplement area meteorological watch;
amendment to the provisions concerning meteorological conditions along the
route to an alternate aerodrome.
48 Fifth Session of the Amendment to model AIREP form of air-report to reflect changes in
procedures for aircraft meteorological observations and reports,
'consequential to an amendment to the PANS-RAC.
2 December 1960
-
1 July 1961
Meteorology
Division
49 Fifth Session of the
Meteorology
Division
Introduction of definition of "D-value" 8 April 1963
1 August 1963
1 November 1963
50 World
Meteorological
Organization
Updating of aeronautical meteorological figure codes, introduced by WMO,
as of 1 January 1964.
18 March 1964
-
18 March 1964
51 Meteorology and
(6th Edition) Operations
Divisional Meeting
Introduction of a requirement for observations to be made at locations where
they will be representative of the area for which they arc primarily required;
extension of the criteria for special air-reports to cover phenomena tikely to
affect efficiency as well as safety, and deleting the requirement for
"additional aircraft observations" according to regionally agreed criteria;
deletion from the AIREP form of air-report of D-value, weather and cloud
as standard items; introduction of a modified model AIREP form; changes to
31 May 1965
1 October 1965
10 March 1966
the provisions relating to forms of meteorological messages and providing
for the exchan-g e of information in pictorial form; introduction of definition
of "plain language".
52 World Updating of aeronautical meteorological figure codes, introduced by WMO,
Meteorological as of 10 March 1966.
Organization
12 December 1966
-
12 December 1966
53 Meteorology and Permitting regional air navigation agreement on the use of a pictorial form
Operations of message for the dissemination of forecasts; replacement of the term
Divisional Meeting "symbolic form of message" by a more specific description of the form of
message to whicli this expression was intended to refer.
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