60.15. Sales tax refund procedures regarding contracts with exempt entities. 60.16. Local Sales, Use and Hotel Occupancy Tax.Upon the filing of a duly executed version of this Assurance in the Allegheny. The CISG, which deals with both contract formation and the obligations of the parties, carefully balances the interests of the buyer and seller. Separate and sealed Bids will be received at the Office of the Controller of Allegheny County, Room 104 Courthouse,. 1. Definitions. "Buyer" means the entity to which Seller is providing Products or Services under the Contract. INDIVIDUAL ACT-32 Forms. For federal income tax purposes (wherever residing), and any relative residing in the same household. What are the main features of this model? Sale and Transfer of Surplus Products and Unneeded Purchased Supplies.