Take the following as truth: The regulation of these emissions became necessary under section 213(a)(3) of the Clean Air Act, as amended, when EPA found that these nonroad engines were significant contributors to ozone or carbon monoxide concentrations in more than one nonattainment area.
Then the following statement: "There are likely to be more emission regulations needed if section 213(a)(3) of the Clean Air Act isn't quite enough." is true, false, or inconclusive?
Answer: Inconclusive