Transportation Coverage/Marina Pollution Program Insurance

What is Transportation Coverage/Marina Pollution Program?

Marina pollution coverage (sometimes called marina pollution program or marine pollution liability) helps protect marinas, boatyards and other waterfront operators from third-party claims arising from pollution incidents tied to their operations. Policies typically respond to on-site events such as fuel spills during fueling, bilge discharges, or leaks from storage tanks, and may also address pollution that arises during transportation or transitory storage of vessels and equipment.

Who needs it

Operators who commonly purchase this coverage include marinas, yacht clubs, boat dealers, charter operators, and service yards. Owners of fuel docks, storage facilities and mobile service contractors often face exposures that go beyond general commercial liability, especially where gasoline, diesel, or hazardous waste handling is involved. Businesses also frequently combine marina pollution coverage with commercial liability, equipment coverage or commercial auto exposure to address related risks.

What it typically covers

Typical policies provide third-party bodily injury and property damage from pollution events, cleanup costs, legal defense, and sometimes emergency response expenses. Coverage can be written on a claims-made or occurrence basis and may include endorsements for adjacent property damage, off-site transport incidents, and limited storage tank liability. For an overview of program structures and options, see the Marina Pollution Insurance Program.

Common exclusions or limitations

Policies commonly exclude intentional acts, known pre-existing contamination, nuclear or war-related hazards, and routine maintenance discharges unless specifically endorsed. Underground storage tank claims may be subject to separate limits or require pollution legal liability wording. Tail coverage or extended reporting periods can be important when switching carriers or ending operations—learn more on Tail Coverage / Marina Pollution Program.

Factors that influence cost

Underwriters evaluate vessel counts, fuel sales volume, number and condition of storage tanks, proximity to sensitive water bodies, past loss history, and pollution prevention practices. Risk management measures such as secondary containment, spill response plans, staff training, and licensed disposal practices typically lower premium and improve insurability. Commercial liability history and the types of services offered (repair, haul-out, fueling) also influence pricing.

Proof of insurance & compliance

Many municipalities, port authorities and lease agreements require proof of pollution liability limits, site-specific endorsements, or evidence of environmental risk controls. Certificates and endorsements should be reviewed to confirm required wording and limits. For more detailed liability wording, review Marine Pollution Liability Insurance.

How to get a quote

To get an accurate quote, prepare details on operations (fuel throughput, storage, repair services), prior claims, and your pollution prevention measures. When you gather coverages and exclusions, it's helpful to talk to your agent so they can compare carriers and identify needed endorsements; if you’re ready to begin, you can also request a fast online estimate at the carrier portal.

Frequently Asked Questions

Do I need separate coverage for underground storage tanks?

Not always, but underground storage tanks are often handled with specific endorsements or separate pollution legal liability coverage because they pose distinct long-term contamination risks.

What is the difference between claims-made and occurrence policies?

Claims-made policies respond to claims reported during the policy period (or extended reporting period), while occurrence policies respond to incidents that happened during the policy period regardless of when the claim is reported. Each has different implications for tails and continuity of coverage.

Can a marina’s general liability policy cover pollution incidents?

Some general liability policies include very limited pollution coverage, but most pollution exposures require a dedicated marina pollution or marine pollution liability policy for comprehensive protection.

Still have questions? Talk to a local insurance expert.

Partners, Programs & Market Access


We maintain relationships with nationally recognized and specialty-focused insurance providers that actively underwrite this class of business. Our network includes both admitted and non-admitted markets, allowing us to match risks—from straightforward accounts to more complex or hard-to-place exposures—with appropriate underwriting partners.


Program availability, coverage terms, and underwriting appetite can vary based on operations, location, and loss history, so access to multiple markets is key to securing the right fit. This approach helps ensure broader coverage options and more competitive placement across a range of risk profiles.



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