IPMA ICB Reference Guide for PMO. This standard is dedicated to the structures that support projects, programmes and portfolios to run them effectively and efficiently. These structures are called PMO – Project Management Offices. A PMO is defined as an organisational unit responsible for the administrative and specialists’ support of the responsible management in their management of a (set of) project(s), programme(s) or portfolio(s). PMO plays a very important role in designing, performing, monitoring and reporting activities. Specialists are working in PMO together with the Head of PMO who is leading the unit towards its goals and objectives. The new standard defines the competences for the individuals working in PMO. All the competences are aligned with the IPMA ICB that is used by all the project, programme or portfolio managers in their everyday activities.