Shared center lane — Montana Permit Test
Shared center lane on the Montana permit test — 2 rules, each with the reason behind it and a question on it while it is fresh.
The rules
A shared center lane is reserved for left turns (and U-turns where allowed) and is used by vehicles traveling in both directions.
Using the center lane to pass or to drive in sends you toward a car turning from the other side.
These center lanes are reserved for making left turns (or U-turns when they are permitted) but can be used by vehicles traveling in both directions.
A shared center lane is marked on each side by a solid yellow line and a dashed yellow line.
Knowing the pattern tells you this lane is for turning, not a spare lane for passing.
These lanes are marked on each side by a solid yellow and dashed yellow line.
On the test
What is a shared center lane used for?
Left turns by traffic from both directions. Using the center lane to pass or to drive in sends you toward a car turning from the other side. Montana Driver Manual, p.35: “These center lanes are reserved for making left turns (or U-turns when they are permitted) but can be used by vehicles traveling in both directions.”
How this works
Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.
You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.
Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.
What it costs
- One payment, once — not a subscription. Nothing renews and there is nothing to cancel, for an exam you sit one time.
- Free to start: a 10-question test and the first section of cards. No sign-up and no account.
- Paying opens the rest of the cards, unlimited full-length practice tests, and retests built from exactly the questions you got wrong.
- Every level up to Prepared — 3 tests passed in a row.
- Do the work, fail the real exam, and we refund you.
Where these come from
Every rule here is checked against Montana Driver Manual, published by the Montana Department of Justice, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/MT.pdf (Montana Driver Manual, Revised April 2024, Montana Department of Justice, Motor Vehicle Division, retrieved 2026-09-14 and re-checked 2026-10-04; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/MT.pages.txt (scripts/mt-text.sh: pdftotext -layout except printed pp.24-26, which are plain; the fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/MT-exam.html (Administrative Rules of Montana 23.3.121, Road Signs and Road Rules, as reproduced by the Legal Information Institute, read 2026-10-04; states the seven-miss pass mark; sha256 pinned under examSource)
- https://mvdmt.gov/forms-driver-license/ (read 2026-10-04; links the manual)