Required liability. Bodily injury and property damage liability at 30/60/15 is the legal minimum. Liability pays others when you are at fault. It does not repair your car or pay your own medical bills.
Uninsured and underinsured motorist coverage. Maryland requires UM/UIM at the same bodily injury and property damage minimums as your liability coverage. See Maryland uninsured motorist requirements.
Personal injury protection. Insurers must offer at least $2,500 in PIP unless you sign the MIA waiver form. Limited PIP options may exclude benefits for you and household members age 16 and over. Waiving PIP can lower premium. It also changes how medical bills and lost wages are handled after a crash.
Collision and comprehensive. These optional coverages are what people often mean by "full coverage," a marketing phrase rather than a legal term. Collision may pay for your vehicle after a crash. Comprehensive may pay for theft, vandalism, hail, or hitting an animal, subject to the deductible. Neither replaces liability.
Deductibles. A higher collision or comprehensive deductible usually lowers premium and raises the amount you pay at claim time. Required liability and UM/UIM do not work like those deductibles.
Other common add-ons. Medical payments, roadside assistance, rental reimbursement, and umbrella insurance above auto liability are optional. Non-owner policies may fit drivers who do not own a car. Personal auto policies commonly exclude rideshare or primary business use. See commercial auto insurance if the vehicle is used for work.
Newly licensed and teen drivers are rated differently from experienced drivers. A licensed professional can explain household rating, not a cheapest-teen list.