A person whose driver’s license has been suspended or revoked following an arrest for DUI/DWI generally may apply to have their license reinstated at the end of the suspension or revocation period by paying a reissue or reinstatement fee and providing proof of financial responsibility (insurance)—but only after completing any court-ordered sentence, including (1) jail or prison time, (2) work furlough or work release, (3) probation, (4) DUI traffic school, alcohol rehabilitation, treatment, or intervention programs, and (5) payment of fines and court costs.

A driver’s license that has been suspended or revoked is not automatically reinstated when the suspension or revocation period ends, and the driver must complete the reinstatement process to drive legally.

Laws regarding the reinstatement of a driver's license after suspension or revocation for a DUI/DWI arrest vary from state to state and are generally located in a state's statutes—often in the vehicle code, transportation code, or vehicle and traffic code.

In Montana (MT), a person whose driver's license has been suspended or revoked due to a DUI/DWI arrest must complete the reinstatement process after the suspension or revocation period ends to legally drive again. This process includes paying a reinstatement fee and providing proof of liability insurance, which is often referred to as proof of financial responsibility. Additionally, the individual must fulfill all court-ordered obligations, which may include serving jail or prison time, participating in work furlough or work release programs, completing probation, attending DUI traffic school, undergoing alcohol rehabilitation or treatment programs, and paying all fines and court costs. The reinstatement of a driver's license is not automatic, and the individual must proactively complete these requirements to regain their driving privileges. The specific regulations and procedures for reinstating a driver's license in Montana can be found in the state's statutes, particularly those related to motor vehicles and transportation.