Mich. Admin. Code R. 325.2674
Current through Vol. 24-22, December 15, 2024
Rule 4. Calibration of the method or equipment used to test for alcohol or other drugs for which quantitative analysis is performed in blood, urine, or other biological or nonbiological samples shall be verified through the use of control samples each day that tests are run. Results of the control samples shall be documented and retained by the laboratory for a minimum of 1 year.
Mich. Admin. Code R. 325.2674