N.Y.C. Charter § 1065: Section 1065. Budget documents.

Each budget document required by chapters ten, six, or nine of the charter shall be a public document. The official or agency responsible for preparing each such document shall file a copy in the municipal reference and research center, in the principal branch library of each borough and, for the various geographic based budget documents, in the relevant branch library. Copies of each such required budget document shall also be made available for reasonable public inspection in the office of the official or agency responsible for preparing it.