BAC DataMaster Approved Method

	1. The person to be tested must have had nothing to eat or drink, must not have put any foreign substances in his or her mouth or respiratory tract, and must not smoke within fifteen (15) minutes prior to the time a breath sample is taken.
	2. The green LED on the instrument display must be glowing.
	3. Depress the run button, enter the password, and insert the evidence ticket or verify that the external printer is ready to use.
	4. Follow the displayed request for information, and enter by the keyboard.
	5. When "please blow" appears on the display, place a new mouthpiece in the breath tube. The subject must deliver a breath sample.
	Place a new mouthpiece on the breath tube.
	Coach and encourage the person throughout the Breath Sample.
	Remove the mouthpiece
	6. When the printer stops, remove the evidence ticket or report sheet from the printer and check the report printed on the evidence ticket or report sheet for the numerical ethanol subject sample and correct date and time.
	7. If the report displays one (1) of the following messages, the test is not valid; proceed as instructed: (A) If "subject sample interferent" is printed on the report, return to step 1 described in subdivision (1) and perform a second breath test beginning with a twenty (20) minute period. If "subject sample interferent" is printed on the report of this second breath test: (i) obtain an alternate chemical test for ethanol; or (ii) perform the breath test on another evidentiary breath test instrument.
	(B) If "subject sample invalid" is printed on the report, return to step 1 described in subdivision (1) and perform a second breath test beginning with a twenty (20) minute period. If "subject sample invalid" is printed on the report of this second breath test: (i) obtain an alternate chemical test for ethanol; or (ii) perform the breath test on another evidentiary breath test instrument.
	(C) If "radio interference" is printed on the report, locate and remove the source of the radio interference and return to step 2 described in subdivision (2) and perform a second breath test. If "radio interference" is printed on the report of this second breath test: (i) obtain an alternate chemical test for ethanol; or (ii) perform the breath test on another evidentiary breath test instrument .
	(D) If "subject sample incomplete" is printed on the report, return to step 2 described in subdivision (2) and perform a second breath test. If "subject sample incomplete" is printed on the report of this second breath test: (i) obtain an alternate chemical test for ethanol; or (ii) perform the breath test on another evidentiary breath test instrument. However, if "subject sample incomplete" was caused by lack of cooperation by the subject, the breath test operator should record that the test was refused.