Natural Resources Defense Council v. Poet Biorefining- North Manchester, LLC, Poet Biorefining- Cloverdale, LLC, Central Indiana Ethanol, Inc.

On Petition to Transfer from the Indiana Court of Appeals, No. 49A02-1205-MI-423

DAVID, Justice.

Agencies at both the state and federal level are tasked with promulgating, interpreting, and enforcing specific regulations pertaining to their particular area of expertise. Because of the agencies’ degree of expertise, courts exercise significant deference in reviewing those interpretations. Here, Indiana’s environmental agency revised its interpretation of a regulatory term and that interpretation was challenged and subjected to judicial review. But in light of the deference we show to such an…