Converting enhanced underinsured motorist coverage from an opt-in offering of coverage into an opt-out coverage option under provisions of law establishing requirements for private passenger motor vehicle liability insurance; requiring the Maryland Insurance Administration to conduct a study on the impact of converting enhanced underinsured motorist coverage to an opt-out coverage option and report its findings to the Governor and certain committees of the General Assembly by December 31, 2026, and December 31, 2028; etc.