N.Y. Educ. Law § 3218

§ 3218. Evidence of age. 1. Evidence showing that the minor is of the\nrequired age shall be presented as follows:\n a. A duly certified transcript of a birth certificate filed according\nto law, or duly certified transcript of a record of baptism, giving the\ndate of birth; or, if not available,\n b. A passport showing the date of birth of the minor; or, if not\navailable,\n c. Other documentary evidence or other recorded evidence in existence\ntwo years or more, and satisfactory to the certificating officer, except\nan affidavit of age.\n 2. Certificate of age. A person over eighteen years of age may apply\nfor a certificate of age to the superintendent of schools, the district\nsuperintendent, or to the certificating officer. Upon such application a\ncertificate of age, containing the name, date of birth, address and\nsignature of the applicant, shall be issued to him if he furnishes such\nevidence that he is over eighteen years of age as is required for the\nissuance of an employment certificate. Such a certificate of age or an\nemployment certificate previously issued for such person shall be\nconclusive evidence for an employer that the person has reached the age\ncertified to therein.\n