The NIA now invites bids for Supply of Security Serviees for NIA Central Office. Delivery of the Services is three (3) years, unless sooner terminated for cause. Bidders should have completed, within five (5) year from the date of submission and receipt of bids, a contract similar to the Project. For this purpose, similar contracts shall refer to Suppiy of Security Services. The description of an eligible bidder is contained in the Bidding Docunents, particularly, in Section II Instructions to Bidders.