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Delaware Class D Knowledge Practice Test
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Observation, Speed & SpaceStandalone practice
A road-owning agency lowers a residence-district limit from 25 mph to 20 mph under Delaware’s September 2026 law. What must occur before the new lower limit can be enforced?
Correct answer: New signs showing the changed limit must be posted.
Why
Current law allows 20 or 25 mph in a residence district at the discretion of the agency owning the roadway. A change to the lower limit is not enforceable until new signs are posted. Follow the applicable posted limit and always drive slower when hazards require it. The general safe-speed duty continues.
Verified against Delaware Driver Manual · Current residential speed limits · p. 93, 94
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