https://declassified.library.utoronto.ca/files/original/26e3c8ebda38955f8dd8a8b46fd8056d.pdf 9b2fbac658eb8a85aa92005c69e8077b PDF Text Text Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information %y THIS DOCUMENT IS THE PROPERTY OF THE GOVERNMENT OF CANADA SECRET June 1, 1962. MEMORANDUM TO THE CABINET; MB-1 Overflight Agreement It will be recalled that by an Exchange of Notes of June 30, 1959 United States aircraft under the operational control of NORAD are authorized to carry nuclear air-to-air defence weapons over Canada under certain conditions. One of these conditions is that the aircraft may enter Canadian air space only whenever a condition of"air defence readiness"or a higher state of alert is declared by CINCNORAD. These would only be declared in a situation of grave emergency when an attack on North America is deemed to be either imminent or actually in progress. The Exchange of Notes provides that the authorization shall continue in force for a one-year period at a time. It has been renewed annually ever since. The Agreement will, however, lapse automatically at midnight, on June 30 next, unless it is renewed. Officials of the Departments of External Affairs and of National Defence have reviewed this Agreement and consider that one non-substantive modification is required. NORAD no longer employs the term "air defence readiness", employing instead the term "Defence Condition 1 (DEFCON l)« which is its equivalent. J The Secretary of State for External Affairs, with the concurrence of the Minister of National Defence, recommends that the Gabinet approve an extension ©f the authorization obtained in this Agreement for a ##2 002531 �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information - 2 - further one-year period and that the Canadian Ambassador to the United States be authorized to submit to the Department of State a Note, a draft of which is attached, to this effect, and at the same time proposing the above amendment. /KJLM^\ Secretary of State for External Affairs, 002532 � Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context CDNW17381 Title A name given to the resource Memorandum to the Cabinet, "MB-1 Overflight Agreement" Date A point or period of time associated with an event in the lifecycle of the resource 01-Jun-62 Source A related resource from which the described resource is derived Continental defence - Atomic capability, RG25-A-3-b, Volume number: 5931, File number: 50210-F-40, File part: 8.2