Here are some links to trusted local and national resources for Maryland car seat laws and booster seat laws.Drivers here are responsible for making sure any riders under 16 are using a seatbelt or appropriate child safety restraint.
Maryland is one of many states where the child passenger safety law leans heavily on the weight and height limits of the car seat you choose. Please read the manufacturer labels and instructions carefully.
Kids under 8 and under 4′-9″ tall are required to use a federally approved car seat. The seat must be installed and used according to the manufacturer’s instructions.
Infants are to start in a rear facing car seat, and only graduate to a front facing car seat with a 5-point harness when the child has reached the maximum height or weight limit of the infant car seat. Kids under 8 years old and 4′-9″ tall can use a booster seat with a lap and shoulder belt.
Kids thru age 15 must wear a seat belt.
In Maryland, the driver is responsible for making sure kids are properly restrained.
State and National Resources for Maryland Car Seat Laws
Maryland Department of Transportation – Description of the Maryland Car Seat Laws (pages 4-6 of PDF)
nhtsa.gov – U.S. Department of Transportation / National Highway Traffic Safety Administration website
iihs.org – Insurance Institute for Highway Safety, child safety page