Definitions for "enclosed flare", "flare", and "open flare" are added to the rule. The rule is also modified to require retrofits only on enclosed flares. The applicability date for all new flares has been changed to 01/01/2015 to reflect the expected effective date of this rule. (DAR NOTE: The original proposed new rule upon which this change in proposed rule (CPR) was based was published in the July 1, 2014, issue of the Utah State Bulletin, on page 42. Underlining in the rule below indicates text that has been added since the publication of the proposed new rule mentioned above; strike-out indicates text that has been deleted. You must view the CPR and the proposed new rule together to understand all of the changes that will be enforceable should the agency make this rule effective.)