CG 20 37 Endorsement – An endorsement adding certain completed-operations additional insured coverage after the named insured’s work is finished.
In plain language: A cg 20 37 endorsement is a policy add-on that can extend additional insured protection to another party for claims that happen after the insured contractor’s work is completed. Think of it like keeping a limited layer of protection in place after the job is done, instead of only while the work is still happening.
Technical definition: The cg 20 37 endorsement is an additional insured endorsement used with CGL coverage to address liability arising out of the named insured’s completed work for the additional insured. It most often appears by endorsement to a commercial general liability policy, usually in contracting and construction risk transfer situations, and is commonly paired in discussion with forms addressing ongoing operations. Agencies often compare cg 20 37, cg2037, and cg 2037 when reviewing contract compliance, certificates, and post-completion exposure. This often varies by state and carrier; always check the specific policy form.
A common agency problem starts when a contractor sends a certificate showing additional insured status, the project finishes, and months later a claim comes in from faulty work or an injury tied to the completed job. The upstream party assumes it is still protected, but the policy may only have covered the project during ongoing operations, not after the work was finished.
That is why the cg 20 37 endorsement matters in real workflows. Producers, CSRs, and account managers need to understand what it does, what it does not do, and how it fits with contracts that require post-completion protection.
TL;DR
- The cg 20 37 is an additional insured endorsement designed to address certain claims tied to work after completion.
- It matters in agency workflows because contract review, certificate issuance, and renewal conversations often involve requests for completed operations protection.
- A common misunderstanding is assuming additional insured status automatically includes both ongoing operations and post-completion claims.
- Best practice: review the contract, the actual endorsement, and effective dates instead of relying only on a certificate.
What Is the CG 20 37 Endorsement in Insurance?
In insurance terms, cg 2037 refers to a standard-style endorsement commonly associated with additional insured coverage for completed work. When agencies talk about cg2037 or the cg 2037 endorsement, they are usually discussing whether an owner, general contractor, landlord, or similar party is protected for liability arising out of the named insured’s work after that work has been completed and put to its intended use.
This topic comes up most often in general liability insurance for contractors and subcontractors. The endorsement itself is not the whole policy; it modifies the underlying liability coverage and should be read with the declarations, conditions, exclusions, and definitions. In practice, many contracts require both protection during the project and after completion, which is why agencies often compare cg 20 37 to cg 20 10. One form is usually discussed in relation to ongoing operations, while the other addresses post-completion exposures.
A key workflow point is that a certificate does not create coverage. The actual endorsement language controls. Another important distinction is that the scope of completed operations coverage may be limited by contract language, timing, causation wording, or manuscript carrier forms. This often varies by state and carrier; always check the specific policy form.
Key Related Terms to Know
- Additional insured – A person or organization added to another insured’s policy for certain liability arising out of the named insured’s operations or work. This is usually done by an additional insured endorsement, not by the certificate alone.
- Completed operations – Liability exposure that can remain after work is finished, abandoned, or put to its intended use. This is where cg2037 form discussions usually happen, especially in contractor risk transfer.
- Ongoing operations – Exposure that exists while the work is still in progress. Agencies often explain that ongoing operations and completed work are not interchangeable, even though clients sometimes treat them as the same thing.
- Certificate of insurance – A summary document showing evidence of insurance at a point in time. It may reference additional insured status, but it does not replace the actual policy wording or prove a cg 2037 endorsement is attached.
- Primary and noncontributory wording – Contract-driven language about how coverage responds before other insurance. It is related but separate from whether a party has additional insured status for completed claims.
- Contractual risk transfer – The process of allocating liability through construction contracts, subcontracts, leases, or service agreements. This is where requests for a completed operations endorsement often originate.
- Occurrence basis – Most CGL forms respond based on when bodily injury or property damage occurs, subject to policy terms. That timing issue becomes important when agencies discuss the policy period, project completion, and whether the endorsement was in force when the loss occurred.
Common Questions About the CG 20 37 Endorsement
Does cg 20 37 cover the same thing as a standard additional insured request?
Not necessarily. Many insureds think any additional insured endorsement gives full protection for every stage of a job, but that is often not true. The cg 20 37 endorsement is typically discussed for post-completion exposure, while other forms may address only work in progress. For E&O purposes, agencies should avoid saying a party is “fully covered” unless the actual endorsement wording and contract requirements have been reviewed.
Why do clients ask for both cg 20 10 and cg 20 37?
Because many contracts want protection during construction and after construction is complete. In everyday agency terms, cg 20 10 is commonly associated with coverage during ongoing operations, while cg 20 37 addresses the completed side. If a contract requires both and only one form is attached, there may be a gap that does not become obvious until a claim arrives months later.
Is cg2037 the same as saying the certificate lists additional insured?
No. A certificate can show that additional insured status was requested or evidenced, but it does not create or expand coverage. If a dispute occurs, the carrier will look to the policy and the actual endorsement wording, not the certificate description. That is why agencies should document requests carefully and avoid shorthand explanations that could be misunderstood.
Does the endorsement stay in force forever after the project ends?
Usually no, and that is a major point of confusion. Coverage depends on when the injury or damage occurs, the policy period, and the specific endorsement wording attached to the liability insurance policy. If a claim happens after the policy expiration date and no other applicable coverage is in place, the upstream party may discover there is no protection for that later loss.
Is this only relevant for construction accounts?
Construction is the most common setting, but not the only one. Any account with contract-based transfer of liability tied to completed work can raise the issue, although contractors are where agencies see it most often. Claims involving repairs, installations, and post-job property damage can all trigger discussions about completed operations coverage.
Does it apply to every kind of defect or poor workmanship claim?
Not automatically. Coverage still depends on the allegations, the policy wording, exclusions, and how the jurisdiction treats damage caused by faulty work. In some situations, construction defect claims may involve covered resulting damage, while the cost to repair the insured’s own work may be treated differently. Agencies should explain concepts, not promise claim outcomes.
CG 20 37 Endorsement vs. CG 20 10
The most common comparison is between cg 2037 and cg 20 10. In practical agency language, one is usually associated with claims tied to work after completion, while the other is commonly discussed as the form for work still in progress. Because contract requirements often call for both, confusion happens when insureds, certificate holders, or even staff assume one form automatically includes the other.
Another issue is form edition and carrier variation. People may ask for cg2037, cg 20 10, or even say they need an ongoing and completed operations endorsement, but the actual policy may use different wording or manuscript forms. This often varies by state and carrier; always check the specific policy form.
|
Comparison Area |
cg 20 37 endorsement |
cg 20 10
|
|
Primary use case |
Additional insured protection tied to completed work |
Additional insured protection commonly tied to work in progress |
|
Coverage / concept type |
Post-completion additional insured concept |
In-progress additional insured concept |
|
Typical exclusions |
Subject to underlying CGL exclusions and endorsement wording |
Subject to underlying CGL exclusions and endorsement wording |
|
Who is most affected by errors |
Owners, general contractors, and other upstream additional insured parties after job completion |
Owners, general contractors, and other upstream parties during active work |
|
Common mistakes |
Assuming it is included automatically, or confusing it with ongoing operations |
Assuming it also grants completed protection without separate wording |
In many construction workflows, insureds are asked for cg 20 10 and cg 20 37 together. Some staff may refer to cg 2010, while others may write cg 2010 and cg2037 in notes. The important point is not the shorthand; it is confirming the actual endorsement set attached to the policy.
Real Claim Examples Involving the CG 20 37 Endorsement
Scenario 1: A subcontractor completed exterior façade work on a retail project. Eight months later, a section of installed material loosened during a storm and damaged parked vehicles below. The property owner tendered the claim as an additional insured, expecting protection because the subcontractor had provided a certificate at the start of the job. The agency file showed a request for additional insured coverage, but the policy only included an ongoing operations endorsement form and not a completed operations endorsement form. Because the loss arose after the work was completed, the coverage discussion centered on whether any cg 2037 endorsement had actually been attached. The lesson: never assume certificate wording proves post-completion protection.
Scenario 2: A plumbing contractor finished work in a medical office build-out. Several months after occupancy, a hidden fitting failed and water damaged tenant improvements. The general contractor sought defense under the subcontractor’s policy as one of the additional insured parties. The account manager had previously discussed form cg2037 with the insured because the contract required post-completion transfer, but the endorsement request had not been processed before binding. The claim highlighted the difference between ongoing operations and completed exposure. The outcome turned on the actual policy attachments, not the contract requirement alone. The file became an internal training example on documenting endorsement requests before certificate issuance.
Scenario 3: A flooring installer completed work in a restaurant, and six months later a patron slipped where adhesive failure caused tile movement near an entryway. The tenant and landlord both expected defense as upstream parties because the certificate referenced an additional insured endorsement. The carrier reviewed the attached forms, including a cg 20 37 07 04 reference from an earlier policy year and a different current edition request tied to cg 20 37 04 13. The endorsement in force during the loss period became critical. The agency learned to confirm edition dates, effective dates, and policy attachments instead of relying on recycled certificate descriptions from prior terms.
Limitations and Common Mistakes
- The endorsement does not replace reading the full policy. Exclusions, definitions, and carrier-specific wording can still narrow or reshape how the coverage works.
- Agencies often see confusion between cg 20 37, cg2037 endorsement, and the broader idea of a completed operations endorsement. Those terms may be used loosely in conversation, but the actual attached form controls.
- A certificate showing additional insured status is not enough. If the requested endorsement was never issued, the file may create E&O exposure.
- Staff sometimes focus on the contract but not the policy period. A loss after the policy expiration date can create a surprise if no applicable occurrence-based coverage responds.
- Requests for an ongoing and completed operations endorsement should be documented carefully. If only one part is added, the insured and certificate holder may believe something broader was provided.
- Be careful when clients ask about commercial general liability details like edition dates, manuscript forms, or blanket wording. Clear documentation helps reduce misunderstandings.
How to Explain the CG 20 37 Endorsement to Clients
Personal lines-style explanation for a small contractor: “This endorsement is usually about what happens after your job is done. If someone who hires you wants to be protected as an additional insured for claims tied to your finished work, this is one of the forms that may come up. We need to review the contract and your policy, because the certificate by itself does not create that coverage.”
Small business owner script: “Think of this as the post-job version of additional insured protection. One form may apply while your crew is still working, and another may apply after the work is completed. If your contract asks for cg 20 10 and cg 20 37, we should verify both are actually attached before we issue evidence.”
CFO or risk manager script: “When your vendors say they provided additional insured coverage, the key question is whether the policy includes the right form for both project-phase and completed-work exposure. We will review the endorsement schedule, effective dates, and any carrier variation so you know whether the request matches the contract. This often varies by state and carrier; always check the specific policy form.”
In agency conversations, it also helps to explain timing clearly. A cg 20 37 endorsement is not the same thing as tail coverage or an extended reporting period, because those concepts are usually associated with claims-made coverage rather than standard CGL timing. If a client uses terms loosely, bring the conversation back to what they actually need: protection during work, after work, or both.
For training purposes, many agencies compare cg2037, cg 2037 endorsement, and cg 20 37 endorsement in sample certificate requests so staff can spot the issue quickly. It is also useful to note that some people ask for a cg 20 37 07 04 or another edition, while others simply ask for a completed operations endorsement. In either case, the best workflow is to confirm the contract requirement, verify the actual additional insured endorsement, review whether the insured needs an ongoing operations endorsement or an ongoing operations endorsement form as well, and document what was or was not provided.
When contracts require both stages of protection, agencies often hear shorthand like cg 20 10 and cg 20 37, cg 2010, or cg2037. Those references are common, but the safer approach is to review the exact form list, confirm the intended additional insured endorsement wording, and explain whether the request addresses ongoing and completed operations. That kind of clear communication helps avoid disputes later, especially on contractor accounts where general liability insurance requests are frequent and timing matters.