National Reference Laboratory National Reference Laboratory GEVES is a National Reference Laboratory (NRL) for GMO detection in maize (seed) and soya, rapeseed and flax (seed and vegetative parts) and for seed certification for species listed in directives 2002/54, 2002/55, 2002/57, 66/401 and 66/402. Seeds NRLThe National Seed Testing Station at GEVES is designated as National Reference Laboratory (NRL) by the Ministry of Agriculture for seed certification of species listed in directives 2002/54, 2002/55, 2002/57, 66/401 and 66/402. GMO NRLBioGEVES is designated as NRL for GMO detection in maize (seed) and soya, rapeseed and flax (seed and vegetative parts) by decree of 19 October 2011. NRL NewsAll the latest NRL news.