Maryland has a left lane law. Actually, Maryland has two of them, and only one can get you a ticket. The other one is, according to the statute itself, a strongly worded suggestion. That is a very Maryland way to handle a problem.
If you have ever crawled up I-95 between Baltimore and the Beltway behind someone doing 58 in the far left lane while the right lane sat wide open, you have met the people this law was written for. Let's look at what it actually says.
What Maryland Law Actually Says
The rule lives in Maryland Transportation Article § 21-301. It starts with the basics: on any roadway wide enough, drive on the right half, except when you are passing, dodging an obstruction, or the road is marked otherwise.
Then it gets specific in two separate rules.
Rule 1: The "10 under" rule (enforceable)
Under § 21-301(b)(1), any vehicle going 10 miles per hour or more below the posted speed limit must use the right-hand lane, or stay as close as practicable to the right edge of the road. The same applies when conditions call for a slower speed and you are going slower than the normal speed of traffic. The exceptions are passing and getting ready for a legal left turn.
Translation: if the limit is 65 and you are doing 54 in the left lane for fun, that is not a personality. That is a violation.
Rule 2: The "slower than traffic" rule (no ticket allowed)
Section 21-301(b)(2) goes further. It says a driver traveling slower than the general speed of traffic, if practicable, shall drive in the right-hand lane or lanes. Then it adds the plot twist: this paragraph "establishes the policy of the State," and a person may not be issued a citation for violating it.
So Maryland wrote down exactly what everyone wants, then told police they cannot write a ticket for it. Instead, the law tells the state to teach it in driver's ed and to remind drivers with road signs and those overhead electronic message boards. It is the legal equivalent of a sticky note on the fridge.
The Passing Rules Back It Up
Maryland also covers what happens during a pass, in Transportation Article § 21-303:
- A driver passing another vehicle in the same direction must pass on the left at a safe distance.
- Except where passing on the right is allowed, the driver being passed must give way to the right in favor of the passing vehicle.
- The driver being passed may not speed up until the pass is complete.
That last one deserves a frame. Everyone has watched a car cruise at 60, get passed, and suddenly discover 75. In Maryland, that discovery is against the law.
Curious about the other side of the pass? We covered whether it's illegal to pass on the right, and the answer depends on the road.
What's the Fine?
We are not going to guess. Maryland sets traffic fines through the District Court's fine schedule, and amounts can change. If you want the current number for a § 21-301 violation, check the current statute and the Maryland District Court's published fine schedule. For comparison, our neighbors in Virginia put a $100 fine right in the statute.
So Can You Get Pulled Over in Maryland?
For the "10 under" rule, yes. That part has no "no citation" clause. For simply being slower than the flow while staying within 10 of the limit, the statute itself says no citation. That does not make it polite, safe or smart. It just makes it legal-ish.
The real point is the same one behind every lane law: the left lane is for passing. When slower traffic moves right, everyone gets where they are going with fewer surprise lane changes and less stress. If you want the bigger picture, see what camping in the left lane actually means and whether you can get pulled over for staying in it too long.
The Maryland Driver's Field Guide
- Merging onto I-95, I-695, I-270 or I-97? Settle into a right or middle lane. The left lane is not a reward for merging.
- Done passing? Signal and move back right when there is safe room. Not three exits later.
- Getting passed? Hold your speed and let them by. This is not a race, and the statute agrees.
- Seeing those "Keep Right Except to Pass" signs? That is the state using the reminder system the law asks for. Take the hint.
Say It Without Saying a Word
Since Maryland chose gentle reminders, you can too. The Keep Right Unless Passing car magnet says it calmly from your bumper, no eye contact required. Pair it with the matching Keep Right window decal, and remember that any 3 decals get $3 off.
This is why Left Lane Rehab exists.
This article is for general information and humor, not legal advice. Laws and fines change, so check the current statute or a licensed attorney for your situation.
Start your lane rehab today at leftlanerehab.com
Are you the problem? Take the 2-minute Lane Offender Quiz and find out. Then send it to the passenger who swears you drive fine.