What is a "gross polluter" in emissions terms?

A "gross polluter" in emissions terms refers to a vehicle that significantly exceeds the established emissions limits. This classification is crucial for environmental regulations, as it identifies vehicles that release pollutants at levels harmful to air quality and public health. Such vehicles not only contribute to environmental degradation but also fail to comply with federal and state emissions standards designed to promote cleaner air.

Identifying and addressing gross polluters is vital in the broader context of emissions control programs, which aim to reduce overall vehicle emissions and improve air quality. The understanding of what constitutes a gross polluter is essential for regulatory agencies and environmental advocates when implementing emission reduction strategies and conducting vehicle inspections.