Maryland’s left lane law, found at Transportation Code Section 21-301(b), only lets police ticket you if you are driving 10 or more miles per hour below the posted speed limit in the left lane without passing or preparing for a left turn. A separate part of the same statute asks all slower-than-traffic drivers to keep right, but Maryland law explicitly bars officers from writing a citation for violating that piece. If you are cruising at or near the speed limit in the left lane, you may annoy the drivers behind you, but you are not breaking an enforceable rule.
When You Can Actually Be Ticketed
The enforceable part of the statute is subsection (b)(1). If you are traveling 10 or more miles per hour below the posted maximum speed limit, you must drive in the right-hand lane or as close to the right curb or edge of the roadway as practicable. The same requirement kicks in when weather, road work, or similar conditions push traffic below normal speeds and you are moving slower than the flow around you.1Maryland General Assembly. Maryland Code Transportation 21-301 – Driving on Right Side of Roadway Exceptions
So the trigger is specific. On a 65-mph interstate, driving 55 or slower in the left lane without a valid reason is a violation. Driving 60 in the same left lane is not, even if traffic behind you is doing 75.
The Part That Cannot Be Enforced
Subsection (b)(2) is broader but has no teeth. It says any driver traveling slower than the general speed of traffic should, “if practicable as determined by the driver,” use the right-hand lane or lanes. The statute then adds directly: “A person may not be issued a citation for a violation of this paragraph.”1Maryland General Assembly. Maryland Code Transportation 21-301 – Driving on Right Side of Roadway Exceptions
Maryland treats “keep right except to pass” as official policy and teaches it in driver education, but the enforceable line is still the 10-mph threshold. This is worth remembering if an officer or another driver suggests otherwise.
Exceptions That Let You Stay Left
Even when you are more than 10 mph below the limit, the statute allows two situations where the left lane is fine:
- Overtaking and passing a vehicle traveling in the same direction. Once the pass is complete, you are expected to return to the right.
- Preparing for a lawful left turn. Positioning ahead of the turn is permitted.
The statute does not carve out separate exceptions for heavy congestion, bad weather, or yielding to emergency vehicles. The language of the rule itself gives some room, though. It applies only when you are below “the normal speed of traffic under these conditions,” so during rush hour, when every lane crawls at the same pace, no single driver is meaningfully slower than the normal flow. The “as close as practicable” phrasing also leaves space to argue that road conditions made the left lane the safer choice at the moment.1Maryland General Assembly. Maryland Code Transportation 21-301 – Driving on Right Side of Roadway Exceptions
The Fine and the Points
Under the Maryland Courts traffic fine schedule effective October 1, 2025, a Section 21-301(b)(1) violation carries:
- A $90 standard prepayable fine.
- A $130 fine if the violation contributed to an accident.
Because the fines are prepayable, you can pay them without going to court.2Maryland Courts. Traffic Fine Schedule
The point assessment is one point on your driving record for a standard conviction, and three points if the violation contributed to an accident.3Library of Maryland Regulations. COMAR 11.17.13.02 – Assessment of Points Higher figures circulating online do not match the current schedule.
How the Points Add Up
One point from a single left lane ticket is not going to put your license at risk. Points do accumulate, though, and the Motor Vehicle Administration responds at fixed thresholds:
- 3 to 4 points: warning letter from the MVA.
- 5 to 7 points: required enrollment in a driver improvement program.
- 8 to 11 points: possible license suspension, with notice and the right to request a hearing.
- 12 or more points: license revocation, with reapplication required after the revocation period.
Points sit on your Maryland driving record for two years from the date of the violation, not the date of conviction. The driver improvement program does not erase existing points, but completing it voluntarily before you reach a suspension threshold can help at a hearing.4Maryland General Assembly. Maryland Code Transportation 16-402 – Point Assessment for Traffic and Other Violations
Insurance is often the more immediate cost. Even one point shows up on your record, and Maryland insurers pull driving records at renewal. A single minor violation probably will not move your premium much, but repeated moving violations inside a two-year window can shift you into a higher risk tier.
Defenses Worth Considering
Enforcement usually happens through direct observation on highway patrol. An officer trailing you for a stretch of road can gauge whether you were sitting in the left lane, well below the limit, without passing anyone.
If you get the ticket, a few arguments are worth weighing:
- Your speed was within 10 mph of the posted limit. The enforceable rule has a specific speed threshold, and staying inside it takes (b)(1) off the table regardless of which lane you were in.
- You were actively passing another vehicle. The statute explicitly permits left lane use for overtaking.
- You were preparing for a lawful left turn. Left-hand exits and ramps exist, and positioning for them is allowed.
- Traffic conditions eliminated the speed differential. If every lane was moving at roughly the same pace, no one was meaningfully below the normal speed of traffic.
Whether it makes sense to contest a $90 ticket depends on your record. If you are already carrying points from earlier violations, avoiding another point may be worth the trip to court. If your record is clean, the prepayable fine may be the more practical route.
Do Not Confuse This With the Move Over Law
Maryland’s move over law is a separate obligation and applies regardless of your speed or lane. It requires you to change lanes when approaching any stopped vehicle displaying warning signals, including emergency vehicles, tow trucks, and other vehicles with hazard lights or road flares. If changing lanes is not safe or feasible, you must slow to a reasonable speed. Violations carry a $110 fine and one point, rising to $150 and three points if the violation causes a crash, and $750 and three points if it results in death or serious injury.5Zero Deaths Maryland. Move Over Law – Emergency Vehicles and Law Enforcement Safety The move over law is not an exception to the left lane law, and complying with one does not satisfy the other.