New York Consolidated Laws, Labor Law - LAB § 233. Record keeping

1. In all cases where service work is being performed pursuant to a contract therefor the contractor shall keep original payrolls or transcripts thereof, subscribed and confirmed by him as true, under penalties of perjury, showing the hours and days worked by each employee, the craft, trade or occupation at which he was employed, and the wages paid.

2. Where the wages paid include sums which are not paid directly to the workmen weekly and which are expended for supplements, the records required to be maintained shall include a record of such hourly payment on behalf of such employees, the supplement for which such payment has been made, and the name and address of the person to whom such payment has been made.  In all such cases, the contractor shall keep a true and inscribed copy of the agreement under which such payments are made, a record of all net payments made thereunder, and a list of all persons for whom such payments are made.

3. The records required to be maintained shall be kept on the site of the work during all of the time that work under the contract is being performed.

4. All records required to be maintained shall be preserved for a period of three years after the completion of work.