# Design principles for Common Pool Resource (CPR) institution Ostrom identified eight "design principles" of stable local common pool resource management:[33][34]
1-Clearly defined (clear definition of the contents of the Common Pool Resource and effective exclusion of **external** un-entitled parties);
2-The appropriation and **provision** of common resources that are adapted to Local Conditions;
3-Collective-choice arrangements that allow most resource appropriators to Participate in the **decision-making** process;
4-Effective Monitoring by monitors who are part of or **account**able to the appropriators;
5-A scale of Graduated Sanctions for resource appropriators who **violate** community rules;
6-Mechanisms of **Conflict Resolution** that are cheap and of easy access;
7-**Self-determination** of the community Recognized by Higher-level Authorities; and
8-In the case of larger common-pool resources, **organization** in the form of multiple Layers of Nested Enterprises**, with small local CPRs at the base level.