New York Consolidated Laws, Real Property Tax Law - RPT § 1584. Attachment to rolls

In any case in which this chapter requires a document to be attached or annexed to an assessment roll or tax roll, and such roll is prepared in machine readable form only, those requirements shall be deemed satisfied if the document is filed at the time required by law and kept with the assessment roll or tax roll.  The roll must include a statement to the effect that the document or documents are on file and where they are filed.