Indiana Truck Idling Law
Indiana has no statewide idling time limit for trucks. The only state mandate makes schools set their own on-grounds idling policy. Idle-reduction gear earns up to a 400-pound weight allowance (Ind. Code 9-20-4-1).
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
Idle-reduction tech earns up to a 400-pound weight allowance.
City and county ordinances
- Schools must set their own on-grounds idling policy.
- No Indiana city or county truck-idling ordinance appears in the EPA, ATRI, or DOE compilations. Indianapolis runs voluntary anti-idling programs (Knozone) but has no enforceable idling ordinance.
Indiana Idling Law FAQ
Is there a truck idling law in Indiana?
How long can a truck idle in Indiana?
What is the fine for idling in Indiana?
Does an APU count as idling in Indiana?
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 Traffic laws change and this can be out of date, so always confirm the current statute and obey posted signs before you rely on it.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=IN. See our Terms & Disclaimer.
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