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Rule Steel Tanks Inc

USDOT 684292MC-583264USDOT activeAuthority active· DBA Diamond Z Manufacturing· Caldwell, ID

Rule Steel Tanks Inc (USDOT 684292) holds active operating authority as a motor carrier of property under MC-583264 based in Caldwell, ID. The earliest grant on file is from December 2006, 19 years, 11 months ago. $750,000 of liability coverage is on file with The Cincinnati Casualty Company. It reported 3 power units and 3 drivers on its last MCS-150 update (February 2026).

Operating authority

DocketAuthorityStatusInsurance requiredOn file
MC-583264Motor carrier of propertyActive$750,000 liability$750,000 liability

Earliest grant on file: Dec 1, 2006 (19 years, 11 months ago).

Insurance and bonds on file

TypeInsurerCoverageEffectiveCancellation
Liability (BIPD) · form 91XThe Cincinnati Casualty Company$750,000Oct 13, 2019—

Confirm coverage with the insurer before tendering a load.

Authority history

DateDocketAction
Jul 28, 2009MC-583264Discontinued revocation · common carrier
Jul 2, 2009MC-583264Involuntary revocation · common carrier
Dec 1, 2006MC-583264Granted · motor carrier of property

Registration

USDOT number684292
USDOT statusActive
MC numberMC-583264
Legal nameRule Steel Tanks Inc
DBA nameDiamond Z Manufacturing
OperationInterstate
ClassificationAuthorized for hire
Business typeCorporation
LocationCaldwell, Idaho 83605
USDOT addedApr 7, 1997
Last MCS-150 updateFeb 5, 2026
Safety ratingNot rated

Fleet

Power units3
Trucks3
Drivers3 · 3 with a CDL
Annual miles120,000 · 2024

Cargo carried

General freight, Household goods, Metal: sheets, coils, rolls, Drive/tow away, Logs, poles, beams, lumber, Building materials, Machinery, large objects, Liquids/gases, Grain, feed, hay, Paper products, Utilities, Agricultural/farm supplies, Construction

Check it yourself

Data as of Nov 14, 2026. Sources

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