Utah Admin. Code 307-511-2
"Emergency release" means a temporary, infrequent and unavoidable situation in which the loss of gas is uncontrollable or necessary to avoid risk of an immediate and substantial adverse impact on safety, public health, or the environment. An "emergency" is limited to a short-term situation of 24 hours or less caused by an unanticipated event or failure that is out of the operator's control and is not due to operator negligence.
"Flaring" means use of a thermal oxidation system designed to combust hydrocarbons in the presence of a flame.
"Associated Gas" means the natural gas that is produced from an oil well during production operations and is either sold, re-injected, used for production purposes, or flared. Low pressure gas associated with the working, breathing, and flashing of oil is not considered associated gas under this definition and shall be controlled in accordance with Rules R307-506 and R307-507.
Utah Admin. Code R307-511-2