Good Seed and Plant Practices (GSPP) is an international, transparent business chain system. The system has been set up by companies to prevent infection with pathogens in seed and plants. Naktuinbouw performs the audits at companies that want to apply for accreditation or companies that are accredited by the GSPP system.
The purpose of the quality system is to prevent tomato seed and plant lots from being infected by Clavibacter michiganensis subsp. michiganensis (Cmm). Accredited companies have a quality management system, work methods and information supply that comply with the GSPP standard. The GSPP system is managed by the GSPP Foundation.