Participatory Guarantee Systems
Farmers, eaters and technicians vouch for organic and agroecological growers together through peer farm visits, instead of paying an outside certifier.
Start small
Gather 3 to 5 local growers and 2 or 3 regular customers for a two-hour meeting. Adapt an existing PGS standard (for example from IFOAM's PGS resources or a nearby network) rather than writing one from scratch. Then run one peer visit per farm over a season, with a simple checklist and a shared notebook or spreadsheet. Cost is mostly volunteer time (roughly half a day per visit) plus travel; no certification fee.
The problem
Lack of planetary health and ecological regeneration. Small farmers who grow without chemicals often cannot afford third-party organic certification, so their care for soil and water stays invisible and unrewarded in the market, and the pull towards conventional farming stays strong.
Where it fits
Thrives where small family farms sell mostly into local markets (farmers' markets, box schemes, shops) and where buyers and growers already know each other. It needs a few committed farmer groups, an organisation or NGO to hold records and convene meetings, a shared written standard, and ideally legal recognition so the label counts as organic (as in Brazil since 2009, Uruguay, Mexico and India). It grows best alongside training in agroecology and a market where the label earns trust.
The principle underneath
Trust is built by people who have something at stake and can see the farm, not bought from a distant auditor. When growers inspect each other on rotation, consumers sit in, and decisions are made in the open, the verification is cheap, fraud is socially costly, and every visit doubles as shared learning.
A pattern in nature
Mycorrhizal networks, where many plants and fungi exchange signals and resources and a cheating partner gets less back from the network.
Who to call
IFOAM · Organics International (PGS Committee and global PGS database); Rede Ecovida de Agroecologia (southern Brazil); Red de Agroecología del Uruguay; Réseau des Initiatives Agroécologiques au Maroc (RIAM); Mercado el 100 (Mexico City); Campi Aperti (Bologna, Italy); Timbaktu Collective (Andhra Pradesh, India).
Watch out for
Volunteer fatigue and a small core doing all the visits; paperwork that grows faster than the people to handle it; reciprocal inspections between friends (RIAM rotates surveyors and avoids reciprocal visits for this reason); no legal recognition, so the label cannot say organic; disputes over non-compliance that drag on; relying on a single grant to cover coordination.
Where it comes from
Grew from farmer and consumer movements in Latin America and elsewhere from the 1980s and 1990s, with Rede Ecovida in southern Brazil widely cited as a reference model. IFOAM · Organics International helped name and spread the approach as Participatory Guarantee Systems and keeps a global register (2022 survey: at least 323 initiatives, about 1.4 million producers involved). Methods are openly shared; good practice is to adapt a neighbouring network's standard with credit and to keep decisions with the local growers and eaters.
Where it's worked
Southern Brazil (Paraná, Santa Catarina, Rio Grande do Sul) · Late 1990s to present
Ecovida Agroecology Network links farming families, NGOs and consumer groups in a decentralised network that certifies organic food through participatory guarantee. Researchers found innovations in its horizontal structure, participatory certification and local reciprocal markets, and influence on public policy and rural-urban cooperation.
Peer reviewedSourceRede Ecovida de Agroecologia on the Landscape
Uruguay (national) · 2005 to 2018
Red de Agroecología del Uruguay's PGS became the only certifier authorised by the national ministry (MGAP). About 150 certified operators (136 producers, 14 businesses) at time of writing; operators more than doubled between 2012 and 2015. The system built collective identity and made certification reachable for family farmers.
DocumentedSource
Rabat region, Morocco · 2017 to 2018 (pilot)
RIAM, with CIRAD and support from the Fondation Crédit Agricole du Maroc and FAO, co-wrote a charter, standard and procedures with farmers, consumers, distributors and restaurant owners. First labelling of crops in October 2018. CIRAD estimated costs to producers at roughly 10 to 20 times less than third-party certification; uses rotating, non-reciprocal inspections.
DocumentedSourceRéseau des Initiatives Agroécologiques au Maroc (RIAM) on the Landscape
Mexico City, Mexico · Studied 2022 (operating under Mexico's 2006 Organic Products Law and 2010 rules)
Mercado el 100 is described as the only market in Mexico City meeting the legal requirements to run a Participatory Guarantee System. A committee of producers, consumers and technical staff reviews applications and visits farms; producers can be accepted, rejected or placed in transition with about a year to improve.
Peer reviewedSourceMercado el 100 on the Landscape
Bologna, Italy · Studied 2024
Campi Aperti runs peer farm visits and farmers' markets through general assemblies. Members join for shared principles, direct market access and food sovereignty, and name trust as a key benefit. It works without EU organic recognition, showing the model can run in a high-income, regulated setting.
Peer reviewedSource
Where it failed
Participation is the engine and also the weak point. Twelve years in, the Red de Agroecología del Uruguay reported difficulty keeping members actively involved, cumbersome record keeping, weak indicators, thin finances and management that had not kept up with growth. In Bologna, Campi Aperti found lack of time was the main drawback, producers carried most of the work (about 5.4 days a month against 0.9 for consumer members), knowledge pooled in a few experienced hands, it had to hire staff as it grew, and because PGS is not legally recognised in the EU its farmers cannot use the organic logo. In Mexico City, Mercado el 100 had only two people doing farm visits and found the paperwork heavy. Export markets rarely accept PGS (Rede Ecovida study). India's state-backed PGS scheme reached about 36,000 smallholders and 35,000 ha by July 2016, far short of its goal of 500,000 ha within three years.
Who practises it
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