In 2009, the P5 Standard introduced a structure for identifying sustainability impacts at the project level. In 2013, the first Practice Guide translated that structure into application. The environment those documents were written for no longer exists. Disclosure regimes have hardened. GRI, TCFD, and ISSB S1/S2 now define what organizations are required to report, govern, and defend.

P5 Version 4 is a complete rewrite. Every element is crosswalked to SDGs, GRI, TCFD, and ISSB, so project-level impact data moves into enterprise reporting without reconstruction.

The Fourth Edition Practice Guide formalizes impact thresholds as decision triggers, introduces dynamic materiality into project oversight, and defines how sustainability performance escalates through governance rather than sitting beside it.

These are not updates. They are a governance architecture for projects in 2026.

They are free (as they should be) and we invite everyone in the profession to download them. You can find them on the GPM website and the PMI website.