Maryland Bicycle Laws

Required under age

Required under age 16

Applies to passengers

Yes

Standard

CPSC (16 CFR Part 1203)

Penalty

Md. Transp. § 21-1207.1 requires every rider and passenger under 16 to wear a CPSC-certified helmet on any public road, sidewalk, bicycle path, or other public right-of-way. The first offense is a warning; subsequent offenses carry a fine of up to $50, often waived on proof of helmet purchase or completion of a safety course.

Statute

¹

Confirm equipment fit with the helmet size calculator before relying on an age rule alone.

Statewide rule

Defers to local rules

Notes

Md. Transp. § 21-1207 leaves sidewalk regulation to local jurisdictions and the Maryland State Highway Administration: bicycles may be ridden on sidewalks where signs permit and where local ordinance has not prohibited it. Baltimore City prohibits sidewalk riding for anyone over 12 in business districts; Montgomery County permits it everywhere except where signed; Ocean City bans it on the boardwalk between 10 a.m. and 10 p.m. in summer.

Statute

¹

A bell does not replace yielding or signaling, but it can warn other path users; compare bike bells and horns.

Applies to bicycles

Yes

Separate cycling DUI statute

No

BAC limit

0.08

Penalty

Md. Transp. § 21-1202 makes a person riding a bicycle subject to all the duties applicable to the driver of a vehicle, and Maryland's DUI statute (Md. Transp. § 21-902) applies to anyone driving or attempting to drive 'any vehicle' while under the influence. Maryland courts have applied DUI to cyclists, with penalties identical to motor-vehicle DUI - fines up to $1,000, possible jail time, and points on a driver's licence even though no motor vehicle was involved.

Statute

¹²

If alcohol or drugs may impair the rider, do not ride; arrange another way home and secure the parked bike with a lock suited to the theft risk.

— Not yet researched.

Front light required

Yes

Front spec

Lamp on the front emitting a white light visible from at least 500 feet to the front, required from a half hour after sunset until a half hour before sunrise.

Rear requirement

Rear reflector or light

Rear spec

Red reflector on the rear visible from all distances from 600 feet to 100 feet when directly in front of lawful lower-beam headlamps, or a red rear lamp visible from 600 feet in lieu of the reflector.

Side reflectors

No

Pedal reflectors

No

When required

Darkness

Statute

¹

For equipment that matches the visibility requirement, compare bike lights by beam and runtime.

— Not yet researched.

Two abreast allowed

Yes

Conditions

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.

Statute

¹

For low-light road and group visibility, compare bike lights for commuting and unlit roads.

Rule

One ear only

Statute

¹

A mirror can supplement direct observation but cannot replace shoulder checks or hearing traffic; compare bike mirrors by mount type.

— Not yet researched.

Bicycle registration required

No

Operator license required

No

For theft prevention when the bike is parked, compare bike locks for different risk levels.

Interstates

Prohibited

Notes

Bicycles are prohibited on Maryland Interstate highways and on other controlled-access highways designated by the State Highway Administration. The Capital Beltway (I-495/I-95), I-70, I-83, and I-97 are all closed to bicycles. Conventional US and state routes (US-1, US-40, MD-355) remain open.

For low-light road and group visibility, compare bike lights for commuting and unlit roads.