This volume serves as the foundational legal and procedural framework governing the life, worship, and administration of the Presbyterian Church (U.S.A.). The text functions as the second part of the denomination's Constitution, providing the essential rules that dictate how the church operates at all levels. It establishes the theological and practical standards for governance, liturgical practice, and judicial discipline within the church body.

This document is considered a primary reference tool for clergy, church officers, and members involved in the governance of the Presbyterian Church (U.S.A.). Readers frequently note the formal, legalistic density of the prose, which is necessary for its function as a governing constitution.