Using lights — Oregon Permit Test

Using lights on the Oregon permit test — 4 rules, each with the reason behind it and a question on it while it is fresh.

The rules

Headlights must be turned on from sunset to sunrise, and also at any time conditions make it difficult to see people or vehicles 1,000 feet ahead.

The second half is the one that catches drivers out — fog at noon triggers it just as darkness does.

Lights also must be on at any time conditions make it difficult to see people or vehicles 1,000 feet ahead.

2026-2027 Oregon Driver Manual, p.76

If using high beams you must dim them when an oncoming vehicle is within 500 feet, and dim them when following another vehicle within 350 feet.

The following distance is shorter because the glare reaches the other driver through a mirror, which is enough to blind them just the same.

If using your high beams, you must dim your lights when an oncoming vehicle is within 500 feet. Dim your lights when following another vehicle within 350 feet.

2026-2027 Oregon Driver Manual, p.76

When you are required to dim your headlights, other auxiliary lights such as fog lights must be off, because they make it difficult for oncoming drivers to see.

Dipping the main beams while leaving fog lights burning defeats the whole point of dipping them.

When you are required to dim your headlights, other auxiliary lights such as fog lights, must be off. These extra lights make it difficult for oncoming drivers to see.

2026-2027 Oregon Driver Manual, p.76

It is illegal to drive at night or in bad weather with only the parking lights on, and a vehicle stopped or parked on a road or shoulder must have parking lights on in limited visibility conditions.

Parking lights mark a stationary vehicle. On a moving one they give an approaching driver the wrong idea of what they are looking at.

It is illegal to drive a vehicle at night or in bad weather with only the parking lights on. A vehicle stopped or parked on a road or shoulder must have parking lights on in limited visibility conditions.

2026-2027 Oregon Driver Manual, p.76

On the test

Besides sunset to sunrise, when must Oregon headlights be on?

Whenever people or vehicles are hard to see 1,000 feet ahead. The second half is the one that catches drivers out — fog at noon triggers it just as darkness does. 2026-2027 Oregon Driver Manual, p.76: “Lights also must be on at any time conditions make it difficult to see people or vehicles 1,000 feet ahead.”

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 2026-2027 Oregon Driver Manual, published by the Oregon Department of Transportation, and against the state code itself. Last checked 2026-09-15.