PA Emissions Inspector Certification Practice Exam

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Prepare for the PA Emissions Inspector Certification Test with comprehensive flashcards and multiple-choice questions. Get explanations and tips with each question to successfully ace the exam.

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Which legislation standardized the ODB system?

Clean Air Act of 1990
Motor Vehicle Safety Act
Clean Water Act
National Environmental Policy Act

The correct answer is: Clean Air Act of 1990

The Clean Air Act of 1990 is the correct legislation that standardized the On-Board Diagnostics (OBD) system. This act was part of a broader effort to improve air quality and reduce emissions from vehicles. It established the requirement for all new cars and light trucks to be equipped with an OBD system, which monitors the performance of the vehicle's engine and other essential systems. The OBD system provides detailed information about emissions-related issues and helps ensure compliance with environmental standards. The other options do not pertain to the standardization of vehicle diagnostic systems. The Motor Vehicle Safety Act focuses on vehicle safety regulations, the Clean Water Act addresses water pollution, and the National Environmental Policy Act sets forth policy for environmental protection but does not specifically deal with the standardization of OBD systems.