Updated Oct 21, 2026

Warren Transport Inc

As of Oct 21, 2026, Warren Transport Inc in Waterloo, Iowa reports 343 power units and 340 drivers on its MCS-150, FMCSA safety rating: satisfactory.

3124 Titan Trail, Waterloo, Iowa 50701 (319) 233-6113

Verified Oct 21, 2026 against FMCSA Company Census File (data.transportation.gov)

Warren Transport Inc (USDOT 1896, MC-114211) is an active motor carrier based in Waterloo, Iowa that FMCSA's census classifies as for-hire and that declares hazardous materials on its MCS-150. Operation: interstate. Operating authority: active for-hire authority (MC). Fleet: 343 power units and 340 drivers (340 with CDLs). It reported 27,375,059 miles for 2025 on its MCS-150. Cargo classes declared: general freight, intermodal containers, building materials, construction, machinery, large objects, metal: sheets, coils, rolls, logs, poles, beams, lumber, agricultural / farm supplies, grain, feed, hay, paper products, motor vehicles, drive / tow away. FMCSA safety rating: satisfactory, from a compliance review on July 2, 2010, 16 years ago; it reflects that review, not current performance. Registration (MCS-150) last updated May 7, 2026.

Key facts

Fleet size	100–499 power units Power units, banded. source
FMCSA safety rating	Satisfactory Satisfactory, Conditional or Unsatisfactory after an FMCSA compliance review; most carriers have never had one and are not rated. source
Rating age	Rating over 10 years old How old the FMCSA safety rating is. A rating reflects one compliance review on that date, not current performance; old ratings say little about the carrier today. source
Registration update overdue	No The MCS-150 was last updated more than two years ago, past FMCSA's two-year update requirement; fleet, driver and cargo figures may be out of date. source
Operation	Interstate Interstate, intrastate hazmat or intrastate non-hazmat, as declared on the MCS-150. source
Cargo classes (MCS-150)	General freight, Intermodal containers, Building materials, Construction, Machinery, large objects, Metal: sheets, coils, rolls, Logs, poles, beams, lumber, Agricultural / farm supplies, Grain, feed, hay, Paper products, Motor vehicles, Drive / tow away Cargo the carrier declared it hauls on its latest MCS-150 (FMCSA's fixed cargo list). source
Driver count	100–499 drivers Total drivers, banded. source
Last MCS-150 update	May 7, 2026 When the carrier last updated its registration (required at least every two years). source
USDOT number	1896 source
MC docket	MC-114211 source
Operating authority	Active for-hire authority (MC) source
Power units	343 source
Tractors (owned or leased)	343 source
Trailers (owned or leased)	1,150 source
Drivers	340 source
CDL drivers	340 source
Miles reported (MCS-150)	27,375,059 miles source
Mileage year	2025 source
Also hauls its own freight	No source
Safety rating date	Jul 2, 2010 source
USDOT registered since	Jun 1, 1974 source
Business type	Corporation source

Source event history

Source dates and first observation are different. A notice is not confirmation that a suspension took effect.

May 7, 2026: Filed an MCS-150 update Official source
Jul 2, 2010: Rated by FMCSA Official source
Jun 1, 1974: Registered with FMCSA Official source

Dates on this record

Source updated	Oct 21, 2026 (FMCSA census rows last updated (portal metadata) (the whole dataset, not this record))
Collected	Oct 21, 2026, 1:26 PM ET (the last successful check of the source that included this record)
Effective	Filed an MCS-150 update: May 7, 2026; Rated by FMCSA: Jul 2, 2010; Registered with FMCSA: Jun 1, 1974 (when the source says each fact took effect)
Retired	Not retired: the source is still maintained (whether the dataset is still maintained)

In Iowa

173 hazmat carriers in the dataset are in Iowa; 23 have profiles on this site. Hazmat carriers in Iowa

FMCSA safety rating (all 173 here): Conditional 11 (6%) · Not rated 95 (55%) · Satisfactory 67 (39%)

Rating age (all 173 here): Rating over 10 years old 60 (35%) · Rating 5–10 years old 10 (6%) · Rated within the last 5 years 8 (5%) · None on record 95 (55%)

Fleet size (all 173 in this group): 10–24 power units (83) · 25–99 power units (60) · 100–499 power units (23) · 500+ power units (7)

Cargo classes (MCS-150) (all 173 in this group; a record can count under several values): General freight (122) · Machinery, large objects (87) · Building materials (84) · Construction (84) · Other cargo (80) · Liquids / gases (76) · 24 other values (706)

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Browse related lists

USDOT number: The registration number every interstate (and many intrastate) commercial carrier holds.

MCS-150: The registration form carriers file with FMCSA and must update at least every two years; fleet, drivers, cargo and the hazmat flag on this site come from it, as the carrier declared them.

Safety rating: FMCSA's result after an on-site compliance review: Satisfactory, Conditional or Unsatisfactory. A rating is not refreshed unless FMCSA reviews the carrier again, so many are years old; each profile gives the review date. Most carriers have never been reviewed and are not rated; that is not a bad mark.

Power units: Trucks and tractors that pull or carry freight.

Cargo classes: Self-declared on the MCS-150 from FMCSA's fixed list. Some carriers tick most of the list, so a long list means 'declared', not 'specialises in'; the hazmat flag does not say which hazardous materials.

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Something wrong or out of date? Suggest a correction. Source record ID 1896.