Carrier profile · USDOT 751794 · Updated Aug 20, 2026

Interstate Power & Light

DBA ALLIANT ENERGY

657 power unitsLocal · 1 statesDUBUQUE, IA75/100

AUTHORITY STATUS UNKNOWNHAZMAT

Safety

Roadside out-of-service rates versus the national benchmark, inspection and crash trends, decoded violation themes, and ELD / hours-of-service integrity — the full safety picture behind the verdict.

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 33.3%24-mo cumulative

050%nat'l 22.26%

Driver OOS 8.3%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 12 vehicle and 24 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

33.3% · latest 6-mo window▲ Rising

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending up 36.2 pts across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

23 inspections in the charted months · busiest month Oct '24 · 4

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections across the 24 charted calendar months. Bars show level-qualified vehicle and driver populations; one inspection can qualify for both. The line shows inspections with any out-of-service result.

Inspection coverage· expected vs observed · the fraud signal

Inspection coverage

How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.

Thin coverage

Under-inspected

Expected

Well-monitored

Heavily inspected

≈0.0 / unit·yr

thin signalabundant signal

Few roadside inspections for a 657-unit fleet — the out-of-service and violation signals above rest on a small sample, so weight them cautiously. Thin coverage on a young authority is itself a flag.

Registered power units: 657
Inspections · 24 mo: 24
Annualized: ≈12 / yr
Coverage: ≈0.0 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

Unsafe Driving

Vektor peer est.

Hours-of-Service

0violations

clean · per-BASIC

64%

Driver Fitness

Vektor peer est.

Controlled Substances

0violations

clean · per-BASIC

30%

Vehicle Maintenance

Vektor peer est.

Percentile = standing among same-exposure peers (higher = worse). FMCSA publishes percentiles for only some carriers (shown official); elsewhere we show a Vektor peer-percentile estimate, or the absolute SMS measure when there are too few inspections to rank.

Violation themes· decoded · grouped by BASIC

What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.

392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving23 · 0 OOS
392.16 Failure to use seat beltUnsafe Driving4 · 0 OOS
393.9 Inoperative required lampsVehicle Maintenance4 · 0 OOS
383.23 Operating without a valid CDLDriver Fitness2 · 2 OOS
177.834 Other violationOther2 · 1 OOS
393.40 Parts & accessories (vehicle condition)Vehicle Maintenance1 · 1 OOS
393.41 Parts & accessories (vehicle condition)Vehicle Maintenance1 · 1 OOS
393.43 Parts & accessories (vehicle condition)Vehicle Maintenance1 · 1 OOS
393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance1 · 0 OOS
396.17 Periodic (annual) inspectionVehicle Maintenance1 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 38 inspections — a clean logging history.

Crash history· 62 total · 3 in 24 mo

Total crashes

In last 24 mo

Fatal

Injury

Year	Crashes	Fatal	Injury	Tow
2026	3	0	0	3
2024	1	0	0	1
2023	1	0	0	1
2022	1	0	0	1
2021	2	0	0	2
2020	1	0	0	1
2019	3	0	0	3
2018	4	0	1	3
2017	4	0	1	4
2016	1	0	0	1
2015	3	0	0	3
2014	4	0	1	3
2013	1	0	1	1
2012	4	0	1	4
2011	3	1	2	3
2010	4	0	1	3
2009	5	0	0	5
2008	3	0	2	3
2007	1	1	0	1
2006	3	0	2	3
2005	3	0	2	2
2003	7	0	6	5

Date	State	Injuries	Tow-away
Jul 31, 2026	IA	0	Yes
May 17, 2026	KY	0	Yes
Apr 29, 2026	IA	0	Yes
May 24, 2024	IA	0	Yes
Jul 14, 2023	IA	0	Yes
Feb 2, 2022	IA	0	Yes
Dec 4, 2021	IA	0	Yes
Jul 4, 2021	IA	0	Yes
Aug 21, 2020	IA	0	Yes
Jun 14, 2019	IA	0	Yes
Feb 13, 2019	IA	0	Yes
Feb 10, 2019	IA	0	Yes
Aug 10, 2018	IA	1	No
Jun 27, 2018	IA	0	Yes
Apr 22, 2018	IA	0	Yes
Mar 19, 2018	IA	0	Yes
Dec 11, 2017	IA	0	Yes
Sep 20, 2017	IA	0	Yes
May 9, 2017	IA	0	Yes
Jan 22, 2017	IA	1	Yes
Dec 16, 2016	IA	0	Yes
Oct 6, 2015	IA	0	Yes
Feb 26, 2015	IA	0	Yes
Jan 8, 2015	IA	0	Yes
Aug 14, 2014	IA	0	Yes