TL;DR: Colorado intrastate carriers hold PUC permits with insurer-filed Form E proof at the federal Part 387 levels: $750,000 over 10,000 pounds, hazmat at federal amounts. Towing and movers have enhanced regimes. Workers comp applies from the first employee, and contracts set the working numbers at $1,000,000 and $100,000.
What insurance does Colorado law require for truckers?
A state system deliberately aligned with the federal one. Intrastate carriers hold PUC permits and state IDs, file proof of coverage under Rule 6008, and meet substantive limits Colorado adopts from FMCSR Part 387: $750,000 combined single limit for property carriers over 10,000 pounds, federal amounts for hazmat. Interstate carriers stack the federal filings on the same policy. Workers comp attaches at the first employee. And the contract layer, $1,000,000 liability with $100,000 cargo, governs the freight itself.
What are the required amounts?
| Requirement | Amount | Source |
|---|---|---|
| Intrastate property, over 10,000 lbs | $750,000 CSL | PUC adoption of Part 387 |
| Hazmat | $1,000,000 / $5,000,000 | Federal tiers |
| Towing carriers | $750,000 CSL, first-dollar; on-hook cargo; garagekeepers where storing | PUC towing rules |
| Cargo, regulated property carriage | $10,000 per vehicle reference | PUC rules |
| Interstate general freight | $750,000 | 49 CFR 387.9 |
| Med-pay offer | $5,000, rejectable | Colorado auto law |
How does proof reach the PUC?
Via the insurer, on the Form E certificate, or a Form G surety bond or self-insurance certificate for carriers using those alternatives, always referencing the carrier's PUC state ID and matching its record exactly. The uniform-form conventions apply: insurer-only transmission, cancellation notices ending filings on schedule, and permits that suspend when proof dies. The state ID reference is a Colorado particular worth flagging to insurers unfamiliar with the state, since filings that omit it bounce.
What does workers comp require in Colorado?
Coverage from the first employee under the Workers' Compensation Act, through a market that includes Pinnacol Assurance, the state's competitive fund and largest writer. Mountain-trade trucking injuries, chaining in weather, winter recoveries, run real severity, and class rates price it. Owner-operator classification follows Colorado's tests, with occupational accident coverage the common lease answer outside the comp system, and the certification of coverage kept current as staffing changes.
How do Colorado's driving realities shape the program?
Concretely. The I-70 mountain corridor brings chain-law compliance, tunnel hazmat restrictions, grade-descent discipline, and the runaway-truck severity underwriters price by route; documented mountain training and experience matter in submissions. Hail ranks among the nation's worst, making comprehensive terms, deductibles, and covered parking real decisions rather than afterthoughts. Winter closures reshape schedules for months, and oilfield hauling on the northern plains carries its own market. The insurance program should read like the operation: mountain-aware physical damage, storm strategy, and liability limits sized for corridor severity.
What does a complete Colorado program look like?
$1,000,000 liability clearing the PUC filing, any federal filing, and broker packets; $100,000 cargo; physical damage with hail and mountain exposure priced deliberately; workers comp from hire one; general liability where shippers require it; and, for fleets with assets, excess sized to corridor severity and Denver's verdict trend. Towing operations add their enhanced PUC stack, and movers their regulated-category requirements. The whole program typically rides one renewal calendar, and the PUC filing, the federal filing, and the workers comp certificate each deserve independent verification on it, since any one of them can lapse alone and each failure grounds the operation in its own way.
Real questions Colorado owner-operators and fleet managers ask
What liability does an intrastate Colorado carrier need?
$750,000 combined single limit over 10,000 pounds, Colorado's adoption of the federal Part 387 levels, filed as a Form E with the PUC referencing your state ID. Working carriers buy $1,000,000 since broker contracts require it anyway.
Is cargo insurance required in Colorado?
PUC rules reference $10,000 per vehicle for regulated property carriage, and brokers require $100,000 by contract, which is the operative number. Towing adds on-hook cargo for towed vehicles as part of its enhanced requirements.
What is a Form G in Colorado filings?
A surety bond alternative to the Form E insurance certificate, allowed under Rule 6008 alongside self-insurance certificates. Most property carriers use the Form E; the alternatives serve carriers with non-standard financial responsibility arrangements.
Does hail really matter for Colorado truck insurance?
Enormously, for physical damage: Colorado ranks among the worst hail states, and one Front Range storm can damage a whole yard. Deductible structure, covered or hardened parking, and storm-season planning are priced decisions in Colorado programs.
What workers comp options do Colorado trucking companies have?
Private insurers and Pinnacol Assurance, the competitive state fund, with coverage mandatory from the first employee. Comparing both is standard practice, and documented safety programs move pricing with either.
Can Morrow write trucking insurance in Colorado?
Not directly today. Morrow is the brand name of Afthonea Inc, licensed in Massachusetts, Florida, California, New York, Pennsylvania, Oregon, and Texas. If your trucking company is based in Colorado, we can refer you to a licensed Colorado agent, and this guide still shows you exactly what to ask that agent for. Everything above comes from public Colorado and federal sources, not from us selling you a policy.
Related Colorado trucking guides
The other Colorado trucking questions, answered the same way.
- Trucking insurance in Colorado (start here)
- Intrastate authority and filings
- Minimum liability limits for trucks
- Cost of trucking insurance
- Business insurance in Colorado
- Federal minimum liability limits by commodity
- What is an MCS-90 endorsement?
- Federal minimum liability limits by commodity
- Workers comp for transportation companies
This guide is general information, not legal, tax, or insurance advice. Limits, forms, and deadlines change, so verify current requirements with the Colorado PUC before you rely on them. Morrow is a brand name of Afthonea Inc. Last updated: July 2026.