The P3O® Foundation (2013) manual defines the Centre of Excellence (COE) as the portfolio, programme, and project management standards office. Section 5.3.4 states, "The COE serves as the portfolio, programme, and project management standards office, providing guidance, best practices, and maturity support." This differs from the Organization Portfolio Office (A), Hub Portfolio (B), and Programme (C), which have distinct roles. The 2013 edition highlights the COE’s role in standardizing PPM practices, ensuring consistency across the P3O model. This supports organizational capability development.