Terms Used In CFR > Title 30 > Chapter I > Subchapter K > Part 56 > Subpart D - Air Quality and Physical Agents

• Contract: A legal written agreement that becomes binding when signed.
• Obligation: An order placed, contract awarded, service received, or similar transaction during a given period that will require payments during the same or a future period.
• Remainder: An interest in property that takes effect in the future at a specified time or after the occurrence of some event, such as the death of a life tenant.