This guide is for general information only and is not legal advice. Laws change — verify current rules with your state DOT or a licensed attorney before relying on this for any legal matter. Read full disclaimer.
The rule
Maryland permits cyclists to ride two abreast on the roadway. Two abreast permitted on the roadway when not impeding the normal and reasonable flow of traffic; single file required on roadways where the lane is too narrow to share with an overtaking vehicle. See Md. Code, Transp. § 21-1205 (Riding on roadways and bicycle ways).