Perry Johnson Laboratory Accreditation, Inc. (PJLA) offers an Accreditation Requirements and Operating Criteria for Horseracing Laboratories Program (ILAC G7:02/2016). This is a supplemental program to ISO/IEC 17025 which was established by International Laboratory Accreditation Cooperation (ILAC) to provide a compilation of test method related requirements for horseracing laboratories. The program requires laboratories to have measures in place to address false-negatives and include quality-control protocols in place in every analytical batch. In addition, the program requires proper storage and handling of controlled drugs, determining and documenting the frequency of screening tests, defining investigation criteria for screened samples, determining limits of detection for screening methods and record control and review. In addition, ILAC G7:2/2016 document offers recommendations for establishing the presence of prohibited substances that have been agreed within the horseracing industry and compliance with an appropriate performance specification, and the adoption of harmonized definitions for terms commonly used by racing chemists. Laboratories interested in performing horserace testing and achieve recognition can apply for the supplemental program.