Law
The Function of Chevron Deference in Environmental Regulatory Disputes
Quick fact
In large part because of Chevron deference, courts have often upheld the EPA's scientific and technical interpretations of ambiguous environmental laws, allowing rules like greenhouse gas endangerment findings to stand even when the statutes are vague.
Why this is interesting
When the EPA sets a rule to limit air or water pollution, who gets the final say on what the law means—the agency, a judge, or Congress? The answer often depends on a two-step rule called Chevron deference.