Participatory Guarantee Systems
= " locally focused quality assurance systems.They certify producers based on active participation of stakeholders". 
From the Wikipedia:
"“Participatory Guarantee Systems are locally focused quality assurance systems. They certify producers based on active participation of stakeholders and are built on a foundation of trust, social networks and knowledge exchange”.
Participatory Guarantee Systems (PGS) represent an alternative to third party certification, especially adapted to local markets and short supply chains. They can also complement third party certification with a private label that brings additional guarantees and transparency.
PGS enable the direct participation of producers, consumers and other stakeholders in:
- the choice and definition of the standards
- the development and implementation of certification procedures
- the certification decisions
Participatory Guarantee Systems are also referred to as “participatory certification"."
"PGS provide an important alternative to third-party certification programs. In addition to being more affordable, and less reliant on paperwork, PGS are distinguished by their approach. Inspections are carried out by peer-reviewers, typically other farmers in the area. The PGS model is based on transparency, trust, and direct relationships. PGS foster local networks that strengthen the farming community through mutual support and educational opportunities." (http://www.cngfarming.org/what_is_pgs)
- use in organic farming: http://www.cngfarming.org/what_is_pgs