N.Y. Election Law § 5-210
2.
5. Statewide application forms shall be designed by the state board of elections, which shall conform to the requirements for the national voter registration form in the rules and regulations promulgated by the federal election commission and the federal Help America Vote Act, and shall elicit the information required for the registration poll record. The form shall include such other information as the state board of elections may reasonably require to enable the board of elections to assess the eligibility of the applicant and to administer voter registration and other parts of the election process and shall also include the following information:
(k) The form shall also include space for the following information, which must be contained on the inside of the form after it is folded for mailing:
(vii) A statement informing the applicant that if the form is submitted by mail and the applicant is registering for the first time, certain information or documents must be submitted with the mail-in registration form in order to avoid additional identification requirements upon voting for the first time. Such information and documents are: