AquaTox Research has participated with EPA's DMRQA reference testing program for over twenty years. All biological monitoring/toxicity testing laboratories that generate effluent toxicity data in support of permittees NPDES or SPDES discharge requirements are required to participate in this program on an annual basis. RTC, the organization from which ARI began purchasing the test materials from in 2007, supplies Certificates of Quality to those organizations that achieve a Success Rate of 85% or better for all the reference tests conducted within the calendar year. The Certificates can be viewed through the links below for the years indicated.