Please note that the Department does not allow calibrations to be skipped between runs for relative accuracy testing (including relative accuracy test audits).  Each reference method data point must be individually quality assured.  The averaging of calibration data over multiple runs prohibits individually determined, drift corrected run averages for comparison to the CEMS data.  Part 75 procedures also prohibit “skipped calibrations”.

Reports submitted to the Department using the “Skipped Calibration Approach” will be rejected and will have to be repeated.