Why is it important for Pennsylvania to follow federal emissions standards?

Following federal emissions standards is crucial for Pennsylvania as it ensures that the state maintains air quality, which is vital for public health and environmental protection. These standards are set to control pollutants that can cause respiratory issues, cardiovascular diseases, and other health problems among the population. By adhering to these regulations, Pennsylvania contributes to the overall effort of maintaining cleaner air, which benefits not only its residents but also the ecosystem.

Moreover, compliance with federal emissions standards is linked to the eligibility for federal funding and grants aimed at improving infrastructure, enhancing public transportation, and supporting environmental conservation initiatives. This financial support can help the state implement effective pollution control measures and invest in technological advancements for cleaner vehicles, further promoting a healthier environment.

The other options do not address the core purpose of adhering to emissions standards as emphatically. Saving money on testing, increasing the number of vehicles on the road, or lowering maintenance costs for vehicles, while potentially beneficial in different contexts, do not capture the critical importance of public health, environmental integrity, and the economic implications tied to federal funding.