NPMCA, National Pavement Maintenance Contractors Association

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External Resource3 min

USGS: Coal-Tar-Based Pavement Sealcoat and PAHs

USGS research summary on coal-tar-based sealcoat as a source of polycyclic aromatic hydrocarbons in the environment. Several states and cities restrict or ban coal tar sealers, and customers ask about it, so contractors should know the science behind the debate. This page is research, not a regulation.

External authoritative source. The named publisher maintains this material. Source verified means NPMCA checked the source identity, link and classification; it does not mean NPMCA technically reviewed or approved the underlying regulation or guidance. Open the source for current requirements.
Open source — USGS

Free · outside site

For
Sealcoating Technician, Crew Leader, Foreman, Supervisor, Estimator, Owner-Operator, Business Owner
Jurisdiction
US-federal
Version
1.0 · Published
Source identity checked
2026-09-09
Maintained by
USGS

Sources

  1. [1]Coal-Tar-Based Pavement Sealcoat, PAHs, and Environmental Health — USGS · checked 2026-09-09

Educational only. Your employer is responsible for the safety and compliance program on your job. Talk to a qualified professional where a decision depends on it.