Anatomy of a RIN

A Regulation Identifier Number or RIN are are extremely helpful in identifying and following the progress of each regulatory action or rulemaking proceeding.

What makes them so special is that each regulatory action retains exactly the same RIN throughout the entire rulemaking process so one can use the RIN to track the history of any proposed individual regulation.

A RIN is made up of a 4-digit agency code plus a 4-character alphanumeric code, which is ssigned sequentially based upon when it first made its way into the database.

This allows you to search the Unified Agenda without looking up a new RIN for each step throughout the process.