CoST guidance helps current and prospective members to implement each of the four features of the CoST approach: disclosure, assurance, multi-stakeholder working and social accountability. Our resources set out the key requirements, questions and steps that those responsible for developing a CoST programme need to consider, however they can be utilized by any government or entity wishing to promote more transparent infrastructure locally. Guidance notes are on-Social accountability, scoping study, MSG, Assurance/independent review, and Disclosure.