The Department of State is amending the International Traffic in Arms Regulations (ITAR) to expand the types of defense articles that may be exported and defense services that may be furnished pursuant to the Treaty between the Government of the United States of America and the Government of Australia Concerning Defense Trade Cooperation, the Treaty between the Government of the United States of America and the Government of the United Kingdom of Great Britain and Northern Ireland Concerning Defense Trade Cooperation, and the Canadian exemptions in 126.5 of the ITAR. The Department of State is also making clarifying amendments and conforming updates to Supplement No. 1 entries, specifically to U.S. Munitions List (USML) Category IV(i) manufacturing know-how and USML Category XII night vision entries, to reflect the revisions made to USML Category XII in the rule published on October 12, 2016.