Send a letter to the parish of Baptism. They are required to keep records according to Canon Law (official law of the Church)
Pray for it
It should have the seal of the church stamped onto it; the same church of the baptism record
ask your parents and or priest
I strongly doubt that the State of Michigan keeps track of these or cares whether it happened at all for that matter. You should try contacting the diocese in which you were baptized; if they don't keep the records locally, they'll be able to direct you to whomever does.
The Roman Catholic Church does not issue membership documents. However, if you need to prove that you are a Roman Catholic then you would produce your Baptismal Certificate. A Baptismal Certificate does not verify that you are continuing to practice the Catholic faith or that you are a member of a specific parish etc. It only certifies that you received the sacrament of Baptism.
no yes
The baptism will be in the church records where the baptism was done.
There is no such thing as a bar baptism in the Catholic Church.
You simply write to the Church where the baptism was performed. You give the name of the person baptized, giving the exact name used then. If you have the date, provide it. They will send you a new written certificate with the original baptismal date on it, signed by whoever is in charge of the parish now.
Roman Catholic AnswerThere are several symbols for Catholic Baptism: water, oils, a shell, a white garment, a candle.
Baptism can be for other Christian faiths, not just Catholic. So if you are becoming a Christian, you are baptised.
In general, a replacement baptismal certificate can be issued by the parish in which the Christian was baptized in. Each parish can re-issue a new baptism certificate in a short period because they keep a record of all baptisms at that church. Also, the bishop's office at the diocesan Cathedral should also have a copy.
It is not legal