A system for generating a requisition for selectable items includes a client computer system and a server computer system interconnected via a network. The client computer system is configured to allow a plurality of users to access the server computer system, and the server computer system is configured to associate one of a plurality of work sites with each of the users. The server computer system is also configured to identify items which may be requisitioned by a user associated with the associated work site, and items which may not be requisitioned by a user associated with the associated work site, and to receive and process a request for one or more selected items. The server computer system further verifies that each requested item is an item that may be requisitioned by a user associated with the associated work site and generates a requisition for the verified items. In a further aspect, a method of generating a requisition is also provided.