Pollution exclusions in professional indemnity wordings typically remove liability arising from the actual, alleged or threatened discharge, dispersal, release, seepage, migration or escape of pollutants, together with any cost of testing for, monitoring, cleaning up, removing, containing, treating, detoxifying or neutralising pollutants.
Pollutant is usually defined broadly: any solid, liquid, gaseous or thermal irritant or contaminant, including smoke, vapour, soot, fumes, acids, alkalis, chemicals and waste. The breadth of the definition is deliberate and it catches substances that a firm would not describe as pollution in ordinary language.
Environmental liability is long-tail, expensive and heavily regulated. The statutory framework in England and Wales includes the contaminated land regime under Part 2A of the Environmental Protection Act 1990, the Environmental Damage (Prevention and Remediation) (England) Regulations 2015 and the water pollution offences under the Environmental Permitting (England and Wales) Regulations 2016. Clean-up costs are driven by regulatory standards rather than by the measure of damages in a negligence claim, and they can arrive decades after the work was done.
General liability insurers largely withdrew from gradual pollution risk in the late twentieth century and it migrated to specialist environmental impairment liability products. Professional indemnity wordings picked up the same exclusion by inheritance.
A firm whose entire business is advising on contamination cannot operate under an unqualified pollution exclusion. Better wordings therefore carve back liability arising from a negligent act, error or omission in the provision of professional services, so that bad advice about contamination remains covered even though the contamination itself is excluded.
The distinction is between causing pollution and advising badly about it. A consultant who fails to identify contamination in a site investigation has given negligent advice. A consultant whose drilling rig punctures a containment layer has caused an escape. The first is the intended subject of the carve-back and the second usually is not.
Firms in this field should confirm three things in the wording: that the carve-back exists, that it covers clean-up costs claimed as damages from the insured rather than only third-party property damage, and that the professional services definition includes site investigation, remediation design and validation. The market position for environmental consultants varies considerably on all three.
Read the definition of pollutant before the exclusion, because the definition does most of the work. Check whether there is a sub-limit rather than a full exclusion, since some markets offer a capped grant-back. Consider whether a separate environmental liability policy is needed for the operational exposure, particularly where the firm undertakes intrusive site work. And keep the scope of each report tightly defined, since a large proportion of contamination claims turn on whether the consultant was engaged to look at the issue at all.
Apex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority. Firm reference number 724952. This entry is general information, not advice on any particular policy.