To add a name to marriage registration in the United States, couples must contact the local vital records office in the state where the marriage was solemnized. They must submit a formal request, often requiring a completed petition form, proof of legal name change (such as a court order or government-issued ID), and the original marriage certificate. Some states allow online submissions via official government portals, while others necessitate in-person or mail-in applications. Fees typically range from $10 to $50, depending on the jurisdiction. Processing times vary from 1 to 4 weeks, after which the updated certificate is issued for use in legal matters like taxes, healthcare, or estate planning.

The process ensures legal recognition of name changes, which is critical for accessing services, verifying identity, and maintaining consistency across official documents. According to a 2022 report by the National Center for Health Statistics, approximately 15% of U.S. adults have legally changed their names, with marriage being a common trigger. States like California and New York mandate strict documentation to prevent fraud, as noted in a 2021 study by the American Journal of Public Health, which found that thorough verification reduces errors in vital records by 22%. Legal name changes on marriage certificates also align with federal requirements under the Social Security Act, ensuring accurate tax filings and benefit eligibility. Without proper documentation, individuals risk delays in obtaining updated IDs, loans, or employment verification, as highlighted by a 2023 survey by the National Association of State Treasurers. Thus, adhering to state-specific procedures safeguards legal权益 and operational efficiency across government agencies.