A federal statute requires all passenger vehicles manufactured or sold in the United States to achieve a minimum fuel efficiency standard. The statute is challenged by a car manufacturer as exceeding Congress's constitutional authority. Which of the following is the most likely basis for upholding this federal statute?
- AThe police power, which allows the federal government to regulate for public health and safety.
- BThe Necessary and Proper Clause alone.
- CThe General Welfare Clause, as fuel efficiency promotes the common good.
- DThe Commerce Clause, as vehicle manufacturing and sales are economic activities with a substantial effect on interstate commerce.
Show answer & explanationAnswer & explanation
Correct answer: D. The Commerce Clause, as vehicle manufacturing and sales are economic activities with a substantial effect on interstate commerce.
The Commerce Clause grants Congress the power to regulate interstate commerce. The manufacturing and sale of passenger vehicles, which are produced for and distributed in a national market, are quintessential economic activities that substantially affect interstate commerce. Therefore, setting fuel efficiency standards for these vehicles falls squarely within Congress's Commerce Clause power.
Why the other options are wrong
- A. The federal government does not possess a general 'police power'; that power is reserved to the states under the Tenth Amendment.
- B. The Necessary and Proper Clause is an auxiliary power; it must be used in conjunction with an enumerated power (like the Commerce Clause) to carry out that power, not as a standalone source of authority.
- C. The General Welfare Clause (Taxing and Spending Clause) allows Congress to tax and spend for the general welfare, but it is not a direct grant of power to regulate for the general welfare in the absence of an enumerated power.
Commerce Clause (Economic Activity)
Congress has the power to regulate economic activities that substantially affect interstate commerce, including manufacturing and sales of goods in a national market.
- Broad interpretation since the New Deal era
- Includes regulating channels, instrumentalities, and activities with substantial effect
- Manufacturing, even if local, is part of a larger commercial scheme
- Fuel efficiency directly impacts a national industry and energy consumption
Memory trick: Commerce Clause: From factory floor to distant shore.