QUOTE(JoeCanuk @ Dec 11 2007, 09:42 AM)

First of all, that's a ridiculous rule. Tell your company that.
Second, contact the county court house and tell them you need a marriage certificate. They should be able to make it in one day for you. Get multiple copies. Then just go down to the SS building. You should be fine.
Not a ridiculous rule, most insurance companies work like that. You only have 30 days after a valid change of status to add someone to an existing plan - a valid change of status involves losing a job, getting married, etc. If it were a new job, with new insurance, you can add your spouse at that time, but if it's a job you've had, you get married, and 3 months later decide to add them, 99% of the time you'll be out of luck until open enrollment.
And while not all insurance companies require an SSN, some do. My insurance company required one but the way the HR system was when I entered my husband into it, it let me bypass the SSN, and I updated it when he was issued one. The system we have now didn't let me bypass the SSN (I wasn't 100% sure what it was), and I was required to enter it before I could enroll him.
To the OP - go down to the courthouse and get a copy. We were married in the courthouse, and had 2 copies the very same day. Then go down to the SSA, try to avoid it around lunchtime because that's a bad time (ask me how I know

took me over an hour to get my name changed). And sometimes, you can go to the SSA a few days after and get the NUMBER. They can't issue you a card, that's done somewhere else, but a lot of the time they can at least give you the number.