Governments should ensure access to laws and regulations, judicial and/ or administrative decisions, standard contract clauses on public procurement, as well as to the actual means and processes by which specific procurements are defined, awarded and managed. Information on procurement opportunities should be disclosed as widely as possible in a consistent, timely and user-friendly manner, using the same channels and timeframe for all interested parties. Conditions for participation, such as selection and award criteria as well as the deadline for submission should be established in advance. In addition, they should be published so as to provide sufficient time for potential suppliers for the preparation of tenders and recorded in writing to ensure a level playing field. When using national preferences in public procurement, transparency on the existence of preferences or other discriminatory requirements also enables potential foreign suppliers to determine whether they have an interest in entering a specific procurement process. In projects that hold specific risks because of their value, complexity or sensitivity, a pre-posting of proposed tendering documents could provide an opportunity for potential suppliers to ask questions and provide feedback early in the process. This allows the identification and management of potential issues and concerns before the tendering.