Vanity license plates in Maryland metals debut in in July 1971
It was limited to six letters and/or numbers until 1986 base which is limited seven characters Numbers and/or letters
Handicap plates vanities
No more than six characters letters and/or numbers
Passengers
Multipurpose vehicle
trucks up to 1 ton (EPO)
Trailer
Historic
Street Rod
Motorcycles (6 characters only)