“Successful participation” and any other verb form of the term such as “successfully participate” or “successfully participated” means receiving a score of “acceptable” or “check for error” on:

1. (a) All available concentrations, for analyses accredited on an analyte-by-analyte basis; or
2. (b) The entire group, for analytes accredited as a group of interdependent analytes as described in Volume 1, Module 1 of the TNI standards.

Source. (See Revision Note at chapter heading for Env-C 300) #12065, eff 1-1-17; ss by #13291, eff 11-23-21