I can see someone taking a Baptismal certificate modifying it by removing a Marriage so that they can go somewhere else and get Married without needing to go through an Annulment process. I would not have a problem having parishes send the documents directly to another parish. I myself went in person to the parish I was Baptized in and asked for a Baptism certificate last year. After looking at my drivers license and asking for my birth date. The lady found it in the Baptismal book and asked me for the Godparents names. Which matched what was in the book. She told me to come back in about an hour. There was no charge for it and it had all the other information listed on the back.
when you prepare for marriage you will be asked to provide, or your baptismal parish will be asked to provide, an original recent baptismal certificate showing all sacraments received, signed by the pastor and stamped with the official seal of the parish. believe me, any attempt to change it will be noticed and a new certificate requested.
If you entered the Church after baptism, the circumstances of baptism as proven, attested by you at that time are noted, in a letter, and the certificate showing your other sacraments, with seal, provided to the parish where you are being married. You will not get a “baptismal certificate” at your parish of receptions because you weren’t baptised there. You will get a document, sealed, showing all sacraments received (including details of marriage situations that may have been addressed and resolved at the time of your reception, such as convalidation or annulment).
a baptismal certificate is seldom accepted in a passport application only if no other documentation of birthdate and parentage is available, the rules for use are very tight and limited, and only if it is official, original with seal and has not been tampered with. Dioceses in Mexico are very strict about providing them, probably because there has been abuse, so it is usually best to ask the parish where you are getting married to request it. it is no longer acceptable in applying for a Social Security card if it ever was, and by itself is not acceptable in a passport documentation. the rules have been so tightened up that by itself it probably won’t be useful. (a SS card is NOT an ID card in the US, and is not acceptable as an ID card).
sacramental records of the parish are the property of the parish and diocese, are confidential, and may not be shown or given to anyone other than the individual or parents and legal guardians of a minor, or with their permission, requested by another Catholic parish and sent directly to the pastor.