Update: michigan law states you need a signed medical affidavit that is notarized from your endo, ob, or srs surgeon, you have to pay for the notarizing, then u have to mail an original plus photocopy of id into the mich dept of community health in lansing, with a $40 application fee. They will send you a new copy, and you can have the old copy "impounded", by law which absolutely permanently affixes your gender as female by law to the state for any other documents requiring a change in gender marker, like the drivers liscence. It used to be u change ur drivers liscence first then your birth cert. I will have my medical form hopefully signed by my endo on my appt the 20th. Fom there ill go get it notarized by a lawyer i know on a personal level.

there is, however, a loophole. A correction of gender as "error" may be made, with proper documentation showing correct gender. So i could possibly utilize my hospitol release note with gender of F, should I choose to try. Problem is the fee to michigan state records is non refundable. So u need a medical affidavit stating from whoever, stating: "(your name here full and legal), has been under my care(physician name, liscence number), and has had the proper medical procedures to be considered (insert correct gender). I attest under law that this is true". Then it has to be signed by the doctor, or whoever, notarized and sent in.
You used to be required tomchange DL or ID first, them birth cert, but the new mcl was changed to reflect the above, in 2011. It remains the law. Someven though it was discriminatory, it was legal discrimination. But hey, i feel bad for you Ohio people, my lawyer said they cant legally reflect their change of gender on the birth cert., at all! Christ Im glad im only 45 mins north of ohio, lol, if my parents lived any further south, id have been screwed for the most part.
You can make changes same day as well by going to the office in lansing, all change applications have to be recieved by 3pm of that day, for same day service. The mailing process takes 4-6 weeks depending how busy they are at the records bureau. Psh.
So theres the update for my michigan peeps! As of 2013 that is still law, mcl is 333.2831(c). Hope this helps anyone else out facing the records change to legally correct gender. When one does this they are legally protected under law as that gender, not as trans. Any discriminatory actions by any agency or business or job in relation to your gender is thus protected under law, which is why this is so important to do as a trans person in michigan, because there is only trans specific laws city by city not state wide. If you live as a certain gender, and legal documentation including birth cert matches it, you are covered as that gender legally. And if old records are impounded, noone can dig up anything on you as the old sex and have it stand in court legally, as your birth cert states that sex

hope that helps out any michigan folks out there! With love!