Attached you will find: • Leave of Absence Request (if the form has not yet been submitted). • Certification for Military Caregiver Leave.Fill and submit AMC Form 140, Space Available Travel Request, to your desired AMC Passenger Terminal. To assist you in the application process you can use the Green to Gold ADO Information Booklet. In this article, we detail when to use a formal letter format, the different types of formal letters and how to write your own.