Tennessee Code Title 38. Prevention and Detection of Crime § 38-8-132

(a) Each law enforcement officer specifically assigned to the traffic division of a local law enforcement agency or its equivalent, or for whom a county sheriff or chief of police deems it necessary, shall undergo training on the proper testing procedures for use in investigating cases of suspected driving under the influence, as prohibited by § 55-10-401.

(b) For certifications completed on or after January 1, 2023, the training required by subsection (a) must be completed as part of the required annual in-service training in order to maintain law enforcement certification by the POST commission.