Per "A2LA Proficiency Testing Requirements for Accredited Testing and Calibration Laboratories, 09/05" section H, Providing A2LA with PT Results, lab is required to complete and submit the A2LA Proficiency Testing Data Submission form along with the data and corrective actions. We are the electronic test lab, and we do internal performance-based data comparison (i.e. have two lab staff do the same test independently; A2LA assessor had approved such comparison) rather than participating in proficiency testing program. So my question is, in such situation, do we still need to submit the form of A2LA Proficiency Testing Data Submission along with all PT informantion each time we complete the test? Thank you!