General Liability Insurance Requirements for Natural Gas Contractors: What Utility Companies Expect

Before a natural gas contractor can perform work for a major utility company or municipality, they typically must meet minimum insurance requirements spelled out in a contract or vendor agreement. Getting these wrong — or submitting a certificate that doesn't match the required wording — can mean losing the job or being removed from a vendor list.

Here's what you need to know about GL and related insurance requirements for gas contractor work.

Standard Utility Company GL Requirements

While requirements vary by utility and project size, the following represent common baseline requirements for natural gas contractor work:

General Liability

• $1,000,000 per occurrence
• $2,000,000 aggregate (annual)
• Products/completed operations included
• Contractual liability included
• Additional insured status for the utility company

Some larger utility projects require:

• $2,000,000 per occurrence / $4,000,000 aggregate
• Broad form additional insured (ongoing and completed operations)
• Waiver of subrogation in favor of the utility

Contractor Pollution Liability

Increasingly common in utility vendor agreements:

• $1,000,000 per occurrence / $2,000,000 aggregate minimum
• Additional insured status for the utility
• Notice of cancellation provisions (30 days)

Workers' Compensation

• Statutory limits for the state where work is performed
• Employer's liability: $500,000/$500,000/$500,000 or higher

Commercial Auto

• $1,000,000 combined single limit
• Covers all owned, hired, and non-owned vehicles

Umbrella/Excess Liability

• $2,000,000–$5,000,000 excess over GL, auto, and employer's liability
• Following form over all primary policies

The Additional Insured Problem

"Additional insured" language is one of the most common points of contention between gas contractors and utility companies. The utility wants to be named as an additional insured on your GL policy — meaning they can make a claim directly against your policy if they're sued in connection with your work.

Insurance carriers have tightened their additional insured endorsements significantly. Many now use the ISO CG 20 10/11 endorsement for ongoing operations and CG 20 37 11 for completed operations — and utility companies know to ask for these specific forms.

Be aware of:

• CG 20 10 (2004 edition) — limited version that many utilities no longer accept
• CG 20 10 11 13 + CG 20 37 11 13 — the current pair utility companies prefer
• Blanket additional insured endorsements — convenient but verify they meet the contract requirements

When we bind your GL policy, we review the additional insured wording required by your contracts and confirm your policy endorsements match.

Certificate Compliance Issues That Get Gas Contractors Removed from Vendor Lists

The most common problems we see on COIs for gas contractor work:

1. Wrong additional insured edition dates — using an older endorsement the utility no longer accepts
2. Missing completed operations AI — only adding AI for ongoing operations, not completed
3. Policy limits below contract minimums — submitting a $1M/$2M GL when the contract requires $2M/$4M
4. No CPL on certificate — utility now requires it but contractor's program doesn't include it
5. 30-day notice of cancellation missing — many standard policies only provide 10-day notice; endorsement required
6. Wrong umbrella structure — umbrella doesn't clearly sit over all required primary lines
7. Expired certificate — submitting a COI based on a policy that hasn't renewed yet

We review every certificate request against your contract language before issuing to catch these issues before they cost you a job.

Getting Additional Insureds Added Fast

Gas contractors often need to add a new project owner or utility company as an additional insured on short notice. We offer same-day certificate and endorsement processing for standard requests.

For blanket additional insured programs — where you have ongoing work with multiple utility companies — we can structure your GL with a blanket AI endorsement that covers all qualifying additional insureds automatically without requiring a separate endorsement for each job.

What to Do When Contract Requirements Exceed Your Current Limits

If a new utility contract requires higher limits than your current GL or umbrella provides, the solution is typically:

1. Request a mid-term endorsement to increase your limits — your carrier will charge a pro-rated premium
2. Add an umbrella or increase your existing umbrella limit to close the gap
3. Check whether a per-project aggregate is required (common on large pipeline projects)

We work with multiple A-rated carriers and can typically get increased limits in place within 24–48 hours of your request.

Preparing Your Insurance Program Before Bidding

The best time to review your insurance program against utility company requirements is before you submit a bid — not after you've been awarded the work. Common surprises at bid time:

• CPL requirement you didn't know existed — now you're scrambling to get it added
• $5M umbrella requirement — your existing umbrella is only $2M
• Primary and non-contributory language — some carriers resist this endorsement
• Completed operations tail requirement — utility wants 3-year completed ops tail on CPL

Call us before you bid on a new utility contract. We'll review the insurance specifications and tell you exactly what your program needs to qualify.

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NG Insurance Online specializes in natural gas contractor insurance programs that meet major utility company and municipal requirements. Call (844) 967-5247 or get a quote today.