The New York State (NYS) WIC Vendor Handbook is a reference guide for vendors,. i.e. Authorized WIC Vendors must provide the name, address and telephone number of the Manufacturer, Retailer or Wholesale Distributor of the.Can buy: • Your WIC shopping list shows the fat content and type of milk you must buy. All WIC eligible food items must be included on the NJ WIC APL database in order for WIC benefits to be used for purchase. 2. What is a Price Look-Up code (PLU)?. Using a buy one, get one free promotion allows WIC participants to get additional quantities of WIC foods or nonWIC items at no cost. Many standard forms are available below. All forms are categorized into their respective departments. All WIC vendors must maintain all WIC Program related records, invoices and purchase slips for a period of three years. See the list of WIC approved stores for Massachusetts cities and towns that begin with the letter "B".