DUI Offenses - As enacted, clarifies present law regarding the revocation of a person's driver license for an implied consent violation. - Amends TCA Section 55-10-407.

SB 2640 amends Tennessee law to increase the mandatory license suspension period for first-time drivers convicted of DUI who refuse a chemical test (implied consent violation) from one year to one year and six months. This change directly affects individuals facing license revocation under these specific circumstances, as defined by the revised Section 55-10-407. The bill modifies the penalty structure without altering the underlying offense or adding new requirements.