The Terrorism Risk Insurance Act (TRIA)

Businesses may face property damage, liability claims, injuries, and interruption after an act of terrorism. Insurers can have difficulty pricing a low-frequency event that could create severe, correlated losses across many policies at once. Congress enacted TRIA in 2002 to support the availability of terrorism insurance by establishing a temporary federal loss-sharing program. Congress has reauthorized the program multiple times; the 2019 reauthorization extended it through December 31, 2027.

The program is often called a federal backstop, but that shorthand can mislead if it sounds like the government automatically reimburses an insured business. Treasury’s program operates through insurers and applies only to eligible insured losses under covered property and casualty policies after statutory requirements are satisfied. The policyholder’s rights still depend on the insurance contract, the nature of the loss, the insurer’s coverage decision, and whether Treasury certifies the event as an act of terrorism for program purposes.

What TRIA requires insurers to make available

The statute generally requires each participating insurer to make available coverage for insured losses resulting from acts of terrorism in its covered property and casualty policies. The available coverage cannot differ materially from terms, amounts, and other coverage limitations applicable to losses from events other than terrorism. Insurers must also provide prescribed disclosures, including information about the program and the premium charged for terrorism coverage. This availability requirement is not identical to an instruction that every policyholder must buy the offer.

A policyholder may accept or reject terrorism coverage where the applicable process permits. An insurer may use a terrorism exclusion or conditional endorsement consistent with TRIA and state law, but it must follow the applicable offer, disclosure, and rejection requirements. The quote, signed rejection, declarations, and endorsement should be reviewed to determine whether coverage was selected and what terms apply. A broker’s statement that terrorism is ‘included’ is not a replacement for those documents.

What qualifies as an act of terrorism?

TRIA has a statutory definition, and the Secretary of the Treasury has authority to certify an event. In general, the definition includes a violent act or an act dangerous to human life, property, or infrastructure, committed as part of an effort to coerce the civilian population or influence or affect government policy or conduct, with the required U.S. nexus. The statute contains additional requirements and exclusions. Certification is not automatic merely because media, law enforcement, or an insurer calls an event terrorism in ordinary conversation.

The law excludes from certification an act committed in the course of a war declared by Congress, except for workers’ compensation coverage, and an event with aggregate property and casualty insurance losses of $5 million or less. The precise statutory wording should be consulted for a claim. Treasury’s certification decision is distinct from determining whether an individual insured suffered a covered loss under its policy. A non-certified event might still involve coverage under ordinary policy terms, while a certified event can still be excluded or limited by applicable contract wording if the law permits.

How the federal loss-sharing mechanism works

TRIA does not pay from the first dollar of a loss. For an insurer to qualify for federal compensation, the insurer must meet its individual deductible, and aggregate insured losses from certified terrorism events during the calendar year must meet the program trigger. The insurer deductible is calculated by statute using a percentage of its prior-year direct earned premium in eligible lines. The trigger is an industry-wide amount; Treasury’s 2025 study states that it is $200 million through 2027.

Once program conditions are met, the federal government shares eligible insurer losses above the deductible at the statutory federal share. Treasury’s recent materials state an 80 percent federal share for the current program period, leaving participating insurers responsible for the remaining share, subject to the statutory aggregate cap and other provisions. Treasury and insurers have no obligation for insured losses above the $100 billion program cap in a calendar year. This insurer-level arrangement is not the same as a deductible or limit stated in an individual policyholder’s contract.

Which insurance lines and losses are involved?

TRIA concerns eligible property and casualty insurance, with statutory exclusions and Treasury regulations defining program treatment. Commercial property, general liability, and workers’ compensation may be relevant, but not every insurance product or line is included in the same way. Some lines such as personal lines, life, health, and certain reinsurance or residual-market arrangements are treated differently or excluded. The current consolidated statute and 31 C.F.R. Part 50 should be used for line-specific questions rather than extrapolating from a commercial property quote.

The statute’s insured-loss concept generally concerns losses under primary or excess property and casualty insurance at specified U.S. locations and certain U.S.-connected risks outside the country. A policy can exclude particular types of damage, limit coverage to scheduled property, or contain exclusions that apply independently of terrorism. A business should check both first-party property and third-party liability coverage. The existence of a TRIA offer does not erase exclusions for flood, nuclear hazards, cyber events, war, or other causes, and policy terms may distinguish certified from non-certified terrorism.

A terrorism offer is not proof of complete coverage

A certified event may involve several coverage questions: direct property damage, bodily injury liability, workers’ compensation, business interruption, civil authority, extra expense, and contingent supplier losses. Each coverage part has its own trigger and limit. Business income coverage usually requires covered physical damage unless the contract provides otherwise; if an underlying property form excludes the relevant damage or does not insure the location, the expected revenue loss may not be covered. The TRIA program does not add business income coverage where the underlying contract has none.

The policyholder should examine the terrorism premium disclosure, coverage offer, any rejection form, terrorism exclusion or endorsement, policy limits, sublimits, and definitions. Some policies distinguish certified acts from non-certified terrorism or treat nuclear, biological, chemical, or radiological events separately. Additional insureds and lenders should verify that their interests are recognized. When a business operates in a high-density area, it may also evaluate aggregate exposure across locations and whether limits are shared across property, liability, and time-element losses.

Example: a commercial building loss

Suppose an explosion damages an office building and injures visitors. Investigators describe the event as terrorism, but Treasury has not yet made a certification decision. The building’s commercial property policy and general liability policy are examined under their wording, including any terrorism exclusions and the offer/rejection records. If Treasury later certifies the act, the insurer may count eligible losses toward the TRIA program subject to deductible and trigger conditions. The property owner still makes a claim with its insurer; the statute does not cause Treasury to issue a check directly to the owner.

Texas and exam context

TDI provides insurer-facing resources for TRIA and related reauthorization laws. For a Texas producer, the practical exam distinction is between the federal statutory program and the individual insurance contract. The program influences availability and loss sharing; the insurer issues the policy, makes the offer, records acceptance or rejection, and adjusts covered claims. The producer should not promise a result based only on a TRIA certificate or the existence of the federal program.

Current law is time-sensitive. The program is presently authorized through December 31, 2027, but that date can change if Congress acts. The federal share, trigger, cap, disclosure rules, and definitions are statutory or regulatory and may be amended. The Treasury statutes page maintains the consolidated statute and current regulations. This article is date-stamped for study and should be checked against official sources for later amendments.

How to read the offer and election

When reviewing a commercial quote, distinguish the offer from the policy’s final status. The insurer may provide a separate terrorism premium, a coverage rejection form, or an endorsement stating how certified acts are treated. The insured should check that the election is signed by an authorized person, applies to the correct policy term, and corresponds to the same coverage parts and locations shown in the declarations. If the policy renews or changes insurers, do not assume the previous election carries forward without review.

A rejection may appear to save premium, but its effect should be understood in the context of all policies in the insurance program. A business could reject terrorism coverage in a property policy while its liability policy has a different offer or endorsement. A landlord’s policy, tenant’s policy, contractor policy, and lender requirement may also differ. The business should consider how the election interacts with leases and loan covenants, which may require a particular level of terrorism coverage or documentation.

Event certification and claims timing

Certification can involve factual investigation and statutory criteria. An insurer may begin investigating and adjusting a claim before Treasury completes its determination. The policyholder should give prompt notice, protect property, cooperate with the insurer, and comply with the contract’s proof-of-loss requirements instead of waiting for a program announcement. The insurer evaluates the policy claim; Treasury separately administers insurer applications for federal compensation. A delay or uncertainty about certification does not suspend the insured’s duties after loss.

An event might produce a certified act but no payment under a particular policy because the insured location, damaged property, type of loss, or cause falls outside that contract. Conversely, ordinary policy wording may cover a loss even if Treasury does not certify the event, depending on whether a terrorism exclusion applies and how it is written. Certification determines eligibility for TRIA program treatment; it is not a universal coverage ruling for all policies and all injured parties.

Common exam mistakes

• Confusing the insurer’s TRIA deductible with a policyholder’s deductible.
• Assuming any act called terrorism is automatically certified by Treasury.
• Assuming Treasury pays the policyholder directly rather than sharing eligible insurer losses under the program.
• Treating terrorism coverage as mandatory purchase instead of coverage insurers must make available under the statute.
• Assuming the federal program eliminates policy exclusions or creates business income coverage.
• Forgetting the industry-wide program trigger and aggregate cap.
• Using an outdated reauthorization date or stale federal-share percentage without checking current Treasury material.

Frequently asked questions

Does TRIA automatically cover my business?

No. TRIA requires insurers to make qualifying terrorism coverage available, but the policy documents and the insured’s acceptance or rejection determine what coverage applies.

Is the TRIA deductible my policy deductible?

No. The TRIA insurer deductible is a statutory company-level threshold based on an insurer’s premiums. Your policy has its own deductible and limits.

Does Treasury pay my claim?

The policyholder submits a claim to its insurer. Treasury’s program shares eligible insurer losses only after statutory conditions are met.

How long is TRIA authorized?

As of this article’s September 28, 2026 update, the program is authorized through December 31, 2027. Check Treasury’s current statute page for subsequent changes.

Prepare for the Texas P&C exam

The Texas Property and Casualty exam course helps you distinguish the statutory terrorism program, the insurer’s offer and deductible, and the policy’s actual first-party or liability coverage terms.