PrimusGFS is a food safety certification program, recognized by the Global Food Safety Initiative (GFSI), that audits a produce operation's growing, harvesting, and packing activities against one modular standard. It is widely used across North American fresh produce because a single program can certify a field, a harvest crew, and a packinghouse without stacking three separate schemes.
If you grow, pack, or handle fresh fruits and vegetables and a buyer has asked for a GFSI certificate, PrimusGFS is one of the schemes that satisfies that ask. This guide covers what the program actually is, the nine modules and how they map to farm-through-packing, what the audit scores mean, and how it fits next to HACCP and the broader GFSI ladder.
What is PrimusGFS certification?
PrimusGFS is a certification program that benchmarks a produce operation against a modular food safety standard and, when the operation passes, issues a GFSI-recognized certificate. The standard is owned and administered by PrimusGFS and audited by independent, licensed certification bodies, the same separation of scheme owner and auditor you see in SQF or BRCGS.
Two things make it distinctive in produce. First, it is built for the supply chain that runs from a field to a cold room to a box, so it can certify agricultural operations that a facility-only scheme was never designed for. Second, it is modular: you apply only the modules that match what you actually do, which keeps a small grower's audit from carrying requirements meant for a processing plant.
Because PrimusGFS is GFSI-recognized a PrimusGFS certificate is accepted by retailers and buyers under the GFSI principle of "certified once, accepted everywhere." That recognition is the whole commercial point, it means the certificate travels.
What does farm-through-packing in one audit mean?
It means the same program can cover the operation from the field where produce grows to the packing line where it is boxed, instead of forcing a grower-packer to hold one certificate for the farm and a different one for the packhouse. A vertically integrated operation, grows its own crop, runs its own harvest crew, cools and packs on site, can be audited under one PrimusGFS scope that touches each stage.
The modular structure is what makes that possible. A field-level grower audits against the Good Agricultural Practices (GAP) modules; a harvest crew audits against its own module; a packing or processing facility audits against the Good Manufacturing Practices (GMP) and HACCP modules. Every one of them also carries the Food Safety Management System module. The result is a single, coherent audit that follows the product instead of stopping at the property line.
What are the PrimusGFS modules?
PrimusGFS is organized into modules, and you are audited only against the ones that fit your operation. The program groups them into a management-system module that everyone carries, GAP modules for agricultural operations, and GMP-plus-HACCP modules for facilities.
| Module | Scope | Who it applies to |
|---|---|---|
| Module 1 | Food Safety Management System (FSMS) | Every operation, the documented backbone: policies, procedures, traceability, recall, internal audits |
| Modules 2–4 | Good Agricultural Practices (farm, indoor agriculture, harvest crew) | Growing and harvesting operations |
| Module 5 | Good Manufacturing Practices (facility) | Packing and processing houses |
| Module 6 | HACCP | Facilities that need a hazard analysis and critical control points |
| Module 7 | Preventive Controls | Optional add-on for GMP operations aligning to FSMA preventive controls |
| Module 9 | Integrated Pest Management | Operations documenting IPM practices |
The practical takeaway: Module 1 is the management spine everyone builds, the GAP modules carry the field-level hazards, agricultural water, soil amendments, worker health, and animals and Module 5 plus Module 6 carry the facility-level hazards you would recognize from any GMP program and HACCP plan. If your buyers are moving toward FSMA preventive controls, Module 7 is the bridge.
How is a PrimusGFS operation scored?
PrimusGFS is scored, not simply pass or fail, and certification requires clearing two thresholds at once: an overall audit score of at least 90% and a score of at least 85% in every individual module or operation. Both have to be met, a strong overall number cannot rescue one weak module.
That two-gate design is deliberate. It stops an operation from banking easy points in the field to paper over a failing packhouse, and it keeps every part of the scope above a floor. A worked example: if your overall score lands at 92% but one module comes in at 82%, the certificate is not issued until that module deficiency is corrected, even though the total looks comfortable.
By the numbers. PrimusGFS is one of the programs formally recognized by the Global Food Safety Initiative which benchmarks food safety schemes so that a single certificate is accepted across retailers. PrimusGFS's own materials set certification at an overall score of at least 90% with at least 85% in each module, and a certificate valid for 12 months from the certification decision, verify current thresholds and validity in the PrimusGFS program documents before you plan an audit.
How do you get PrimusGFS certified?
The path is close to any GFSI scheme: scope, build, self-assess, get audited, close findings, maintain. In order:
- Define your scope. List every operation you want on the certificate, farm, indoor growing, harvest crew, cooling, packing, and pick the modules that match. Scope drives everything downstream, so get it right before you build.
- Build the Food Safety Management System. Module 1 is the foundation: documented policies, procedures, traceability one step back and one step forward, a recall program, and internal audits. Most first-timers spend the bulk of their effort here.
- Implement the GAP and GMP requirements. Put the field and facility controls in place and, critically, run them long enough to generate real records, water test results, sanitation logs, training records. Auditors score evidence, not intentions.
- Run a self-assessment. Score yourself against the module checklists and close the obvious gaps before an auditor finds them. This is where you catch the module sitting below 85%.
- Book the audit with a licensed certification body. An approved auditor reviews documents and walks the operation, scoring each module. Expect the whole scope to be examined, field to box.
- Close out findings and earn the certificate. Correct any non-conformances within the program's timeframe, clear both scoring gates, and receive a certificate valid for 12 months, then recertify before it lapses.
PrimusGFS vs other GFSI schemes: which should you choose?
Choose PrimusGFS when your operation lives in fresh produce and spans the field and the packhouse, especially in North American supply chains where it is well established. Choose a facility-focused GFSI scheme when you are a manufacturer or processor without an agricultural side. The honest first move is to ask your buyer which GFSI certificates they accept, that answer usually settles it, because all recognized schemes clear the same GFSI bar.
If you are still mapping the landscape, our GFSI certification overview explains how the recognized schemes relate, and the SQF guide and BRCGS guide cover the facility-heavy alternatives. Whichever you pick, the HACCP work underneath carries across, it is the engine inside every one of them.
How does PrimusGFS connect to the rest of your food safety program?
PrimusGFS is a wrapper around work you should be doing anyway. Module 1 is your management system, the GAP modules are your on-farm controls under the FSMA Produce Safety Rule and Module 5 and Module 6 are your GMPs and HACCP plan. If your packhouse handles wash water, cooling, and sanitation, the day-to-day discipline in produce packing food safety is exactly what the facility module scores.
The recurring failure in produce audits is not the plan, it is producing the records, every day, across a field and a packhouse that may be miles apart. That is where digitizing capture pays off. When water tests, harvest logs, sanitation checks, and traceability records are entered at the point of work instead of on scattered clipboards, a missing record is visible the same day, and an auditor's request is a search rather than a binder hunt. That is how Harmony works with food operations: paper logs and forms become live, searchable data on the systems you already run, no rip-and-replace. See what that looks like in a real plant in our CLS case study.