N.Y.C. Admin. Code § 28-117.1.1: § 28-117.1.1 Contents of the place of assembly certificate of operation.

The certificate of operation shall contain the place of assembly certificate number, the number of persons who may legally occupy the space and any other information that the commissioner may determine. Such certificate of operation shall be framed and mounted in a location that is conspicuously visible to a person entering the space. For the purposes of this article a department issued place of assembly permit or place of assembly certificate of operation shall be valid until its expiration, at which time a new place of assembly certificate of operation shall be required in accordance with the provisions of this article and with the filing requirements of the department.