The 16 GL Exclusions That Get Fiber Contractors Rejected
Your COI passed. Your policy didn’t.

A certificate of insurance shows limits and checkboxes. It says nothing about the exclusions inside the policy — and in a hard insurance market, that’s where carriers cut. A contractor GL policy that looks $2,000 cheaper than the next quote is usually cheaper because it carries three or four of the exclusions below. Prime contractor compliance teams learned this the expensive way, so the sophisticated ones — Dycom companies, major GCs, utility primes — now require the Schedule of Forms and Endorsements plus copies of the additional insured endorsements with your submission, and reserve the right to reject forms they don’t accept.

The practical upshot: your broker needs to read your forms schedule the way a compliance reviewer will — before you submit it. Here’s the list they’re reading against, grouped by what the exclusion actually does.

Requirements documents say primes “reserve the right to reject” these forms — reserving a right is not the same as exercising it. In practice, three things decide whether an exclusion matters to your submission:

• Entity discretion. Large primes operate through many companies — the Dycom family runs 39 — and each has latitude in what it accepts. Some review every form on the schedule; some never ask for the schedule at all
• Your scope of work. A crew that only splices fiber is a different risk than one boring under a state highway. An XCU or earth-movement exclusion that’s disqualifying for the boring crew may draw no attention on a splicing-only subcontract — and your required limits often differ by scope, too
• The specific contract. Requirements ride with the work order and the customer program behind it, not just the company logo. Two subs under the same entity can face different reviews

So why fix exclusions nobody may check? Because the exclusion doesn’t know whether compliance noticed it. If your GL carries an Action Over exclusion and the claim comes, you are the one uncovered — the rejection risk is the smaller half of the problem. Our advice: match the fixes to your actual scope. A splicing crew shouldn’t pay to strip forms that never touch its work; a boring crew shouldn’t bid highway jobs carrying them.

Action Over / Absolute or Amended Employers Liability exclusions. The single most-rejected form. Your employee gets hurt, collects comp, sues the prime; the prime tenders to your GL as additional insured — and the exclusion slams the door. Primes require additional insured status precisely for this claim, so a policy that excludes it is worthless to them.

Injury to Independent Contractors exclusion and Injury to Temporary / Volunteer / Casual Worker exclusions. Fiber crews run on 1099 techs and temp labor. These forms strip coverage for injuries to exactly the people on your route sheets — a quiet catastrophe on a workforce like this industry’s.

Cross Suits exclusion (as applied to additional insureds). Blocks claims between insureds on the same policy — which, once the prime is an additional insured, can block the prime’s own tender.

XCU — Explosion, Collapse, Underground. The underground dealbreaker: it excludes damage from exactly what directional boring and trenching do. An OSP policy with an XCU exclusion is a premises policy wearing a hard hat. (Our pollution liability guide covers XCU’s cousin problems.)

Earth Movement / Subsidence exclusion. Excludes settling and soil movement claims — a routine allegation after any trench or bore near a foundation, sidewalk, or roadway.

Underground Utility Location condition. Voids or restricts coverage when locates weren’t called, weren’t documented, or the ticket lapsed. Sounds reasonable until a paperwork gap turns a covered strike into an uncovered one.

Designated Premises / Project limitation (CG 21 44). Confines coverage to locations listed on the policy — fatal for crews that work wherever the route sheet says.

Prior Work exclusion. Cuts off completed-operations coverage for work done before the policy period — which breaks the continuous completed-ops protection your CG 20 37 / CG 20 40 endorsements promise the prime.

Unlicensed Work / Unlicensed Contractor exclusion. In states with low-voltage licensing, an authority-having-jurisdiction dispute over classification can void the whole claim.

Contractual Liability Limitation (CG 21 39). Narrows the “insured contract” definition so the indemnity you signed in your subcontract isn’t backed by your policy. Every telecom subcontract contains an indemnification clause; this form orphans it.

Contractors and Subcontractors exclusion and Subcontractor / Independent Contractor claim limitations. Strip coverage for claims arising from subs working under you — the standard structure of every fiber build.

Damage to Work Performed by Subcontractors on Your Behalf (CG 22 94). Removes completed-ops coverage for your subs’ work — on jobs where subs do most of the work, that’s most of the coverage.

Breach of Contract exclusion (touching BI/PD). Since nearly every jobsite claim can be framed as a contract breach, a broad version swallows the policy.

Absolute Auto exclusion. Belt-and-suspenders forms that carve all auto-adjacent liability out of the GL can leave gaps around loading, unloading, and mobile equipment that neither policy picks up cleanly.

• Pull your Schedule of Forms and Endorsements today — it’s in your policy packet; if you can’t find it, your broker can produce it in minutes
• Match it against this list — one hit is fixable; three or four means the policy was built for a different trade
• Negotiate removals at renewal — carriers will delete some forms for modest premium; mid-term removals happen, but renewal is your leverage point
• Remarket if the carrier won’t move — telecom-construction-appetite carriers write this work without the kill forms; that’s the market we quote from
• Submit endorsement copies proactively — CG 20 38 + CG 20 40 (or CG 20 10 + CG 20 37) with the forms schedule, before anyone asks

This exact review is built into how we quote: we read the forms schedule against prime requirements — including the Dycom family’s — before binding, not after a rejection email. Start a quote and we’ll audit what you have now for free.