This document outlines various procurement methods used for government projects in Sri Lanka. It describes national competitive bidding (NCB) for projects valued under Rs. 300 million, international competitive bidding (ICB) for higher value or specialized projects, and limited bidding variants. It also covers shopping, direct contracting, repeat orders, force account, two-stage bidding, two-envelope submission, and pre-qualification of bidders - outlining the objectives and processes for each procurement method.