Well, if it's an upper class certificate, they changed how they do that in 2009 so that would be appropriate. And what this means is the "FAA psychiatrist" wasn't comfortable that you didn't have recurrent abuse. The FAA certified guys also call up your colleagues, spouse, etc (per the permission) and he probably got a mixed story. So he punted on you.
No rat. Toughening of the rules/standards. Now for a second for a third, you have to be able to prove abstinence and be sponsored to fly. For a THIRD, you can arrange a random program (600/year) with a HIMS AME, and after two years of proven abstinence (they call you pee) you can be issued- a THIRD class. Or the HIMS AME can sponsor you, monitor you (they call you pee) and you can fly. The STRING is a CHAIN and it is short.
No, the agency doesn't issue specs to the psychiatrists for substance abuse. There was nothing to specify. Your last letter from the FAA specified who and what they wanted. Their attitude is "we don't have to certify you". You have to prove why we SHOULD. Here's what we demand that you do, now do it or go away.
Now after five years of no DUIs, if you apply for a third, can prove no more infractions, have letters from identible members of your community that you are reliable, don't cancel at the last moment, have a signed off AA record- you can be issued. But you have to lose that antiauthority attitude. They consider that part of alcoholism which even if your ARE dry, that you never mastered. FAA doesn't use DSM standards, their standards are TOUGHER.
I'm not saying I necessarily agree, but this is HOW IT IS.