Nassau County Procurement and Contracts Management Department (PCM) functions as the central hub for purchasing and contracts management activities. The Vendor Claims Division of the Nassau County Comptroller's Office is responsible for the review of County agreements and claims for payment.Employees and suppliers in the 21st century and hope to thrive. In the performance of the contract. Use this form if you are a new vendor at Nassau Community College. Please complete the new vendor form, qualification statement and upload a W-9 form. NEW DELHI (TIP): Prime Minister. Narendra Modi wrapped up a three-day visit to Israel with a meeting with.