Update - IMAs must submit ETP letter for all AT requests for remainder of FY 2018 Published Aug. 14, 2018 By Master Sgt Eric Amidon HQ/RIO BUCKLEY AIR FORCE BASE, Colo. -- IMAs must submit an Exception to Policy (ETP) letter to their servicing detachment on any Annual Tour orders requests for the remainder of the fiscal year. The ETP template can be downloaded here.