Form: 97 Research
Date: Mon, 20 Nov 2006 22:03:21 -0600
From: Francis Ridge <>
Subject: JANAP 146; History and Evolution
Source: (A. F. Rullan)
Distribution: CE, SHG, NCP


US Regulation - Date Issued - Key Differences

October 1, 1948; Issued regulation and then it was tabled by Major General Cabell

JANAP 146(A)
September 25, 1950; Start of CIRVIS reporting for commercial and military pilots. Added UFOs to the list of sighting categories

JANAP 146 (B)
September 2, 1951; Not Available

JANAP 146 (C)
March 10, 1954; Allowed Waterborne sources and added MERINT reports

JANAP 146 (D)
February 1, 1959; Integrated Canada into the reporting instructions

JANAP 146 (E)
March 31, 1966; Added that Photographs should be sent to the Director of Naval Intelligence. Added special reporting instruction for
unidentifiable objects.