In which year did the Driver License Division begin issuing a commercial driver license?

The year 1989 is significant in the context of driver licensing because it marks the introduction of the commercial driver license (CDL) as a standardized credential across the United States. This year aligned with federal regulations aimed at improving the safety and training of drivers operating commercial vehicles, which include large trucks and buses. The implementation of the CDL system was enacted to ensure that drivers met specific qualifications and standards, thus increasing road safety not only for commercial drivers but also for other road users. Therefore, recognizing 1989 as the correct answer is indicative of an important milestone in the regulatory framework surrounding commercial vehicle operation and driver licensing.