South Dakota Truck Idling Law
South Dakota has no statewide idling rule and no notable local time limits in the EPA or DOE references. Check individual city ordinances if you are unsure.
When you can keep idling
This state has no statewide idling limit, so there are no statutory exemptions to list. Local ordinances, where they exist, carry their own.
APUs and idle-reduction gear
No statewide rule.
City and county ordinances
No notable city or county idling ordinance was found for South Dakota in the EPA, DOE, or ATRI references. Watch local noise and parking rules.
South Dakota Idling Law FAQ
Is there a truck idling law in South Dakota?
How long can a truck idle in South Dakota?
What is the fine for idling in South Dakota?
Does an APU count as idling in South Dakota?
Reference information for planning, not legal advice. Traffic laws change and this can be out of date, so always confirm the current statute and obey posted signs before you rely on it. Last reviewed July 2026. Source: https://afdc.energy.gov/fuels/laws/IR?state=SD. See our Terms & Disclaimer.
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