Breath Test Results

(1) The results of the analysis of each breath sample and control standard shall be truncated to three decimal places. (2) For the purpose of determining the arrestee’s BAC pursuant to M.G.L. c. 90, §24: (a) if the two breath sample results are the same, that result shall be truncated to two decimal places and reported as the arrestee’s BAC; otherwise (b) the lower of the two breath sample results shall be truncated to two decimal places and reported as the arrestee’s BAC. (3) The arrestee shall be informed of his or her BAC upon completion of a valid test, if requested.