Certification Program

Certified Greenhouse Farmers supports standard development in greenhouse growing, food safety and sustainability for our members and through allied organizations that advocate industry-wide enforceable standards. We back up our claims and certification programs through program reviews from scientists and certification bodies.

Our members must meet our definition of a greenhouse. Members must:
  • Grow in a fully enclosed, permanent structure with impermeable glass or plastic.
  • Use computerized irrigation and climate control to ensure vegetable quality.
  • Grow in a soilless medium with hydroponic methods, protecting against soilborne contaminants.
  • Have Integrated Pest Management systems that minimize the need for pesticides.
As a prerequisite, in addition to meeting our definition of a greenhouse, members must undergo a Global Food Safety Initiative (GFSI)-benchmarked audit, with any noncompliance findings resolved.

Growers are evaluated against the Certified Greenhouse Farmers’ greenhouse growing standard and must provide a greenhouse production plan detailing all aspects of their operation, including: water use, pest management practices, recycling, waste management practices, and attention to external environmental concerns. Information is benchmarked year-after-year to allow growers to improve performance.