Dear All, I am trying to find the official definitions for what constitutes PM RESTRICTED in order to help a few of my brethern understand the difference between UNCLASSIFIED and RESTRICTED. Namely, the document that says things along the lines of - consitutes potential threat or embarrasment to HM Govt etc. Not give something that is RESTRICTED away, I am after defining OPSEC for some people who don't understand the difference. Can anyone help please. Google has been unsuccessful so far and I am not on a milnet system. Thanks in advance.