Yellow lane markings — Delaware Permit Test
Yellow lane markings on the Delaware permit test — 5 rules, each with the reason behind it and a question on it while it is fresh.
The rules
Yellow lines separate traffic moving in opposite directions.
A driver who mistakes a yellow line for a lane divider can drift into oncoming cars.
Lines separating traffic moving in opposite directions are yellow.
A broken yellow line between opposing lanes means you may cross it to pass if it is safe to do so.
Broken yellow marks the stretches with enough view ahead to pass at all.
A broken yellow line between opposing lanes of traffic means that you may cross it to pass if it is safe to do so.
Where a solid and a broken yellow line separate opposing lanes, you may not pass if the solid line is on your side.
The solid line is painted on the side that has a hill or curve hiding oncoming cars.
Where there is both a solid and a broken yellow line between opposing lanes of traffic, you may not pass if the solid yellow line is on your side.
Two solid yellow lines between lanes mean neither side can pass.
Double yellow is painted where neither driver can see far enough ahead to pass safely.
Two solid yellow lines between lanes of traffic means neither side can pass.
You may cross a solid yellow line to turn into a driveway if it is safe to do so.
Without this, a driver could never turn left into a home on a road with a solid center line.
You may cross a solid yellow line to turn into a driveway, if it is safe to do so.
On the test
What do yellow lines on the road separate?
Traffic going opposite directions. A driver who mistakes a yellow line for a lane divider can drift into oncoming cars. Delaware Driver Manual, p.85: “Lines separating traffic moving in opposite directions are yellow.”
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
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Where these come from
Every rule here is checked against Delaware Driver Manual, published by the Delaware Division of Motor Vehicles, and against the state code itself. Last checked 2026-10-05.
- src/assets/drivers-manuals/DE.pdf (Delaware Driver Manual, July 2026, Delaware Division of Motor Vehicles, retrieved 2026-09-14; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/DE.pages.txt (scripts/de-text.sh: plain pdftotext cropped to keep the section tab out, physical 47 under -layout; the fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/DE-exam.html (Delaware Division of Motor Vehicles, Driver's License Exam, https://dmv.de.gov/DriverServices/drivers_license/index.shtml?dc=dr_lic_written, read 2026-10-05; states both exam figures; sha256 pinned under examSource)
- https://dmv.de.gov/menu/forms_manuals.shtml (read 2026-10-05; links the manual)
- https://dmv.de.gov/DriverServices/faqs/index.shtml?dc=dr_faq_general (read 2026-10-05; its 30 and 24 are the exam page's figures before 2024-12, per the Internet Archive)