Several changes were made throughout Rule R307-304 as a result of public comments. These changes include: adding an exemption for materials for solvent cleaning operations to the compliance schedule, adding exemptions for solvent cleaning in laboratory tests, analysis, research, and development projects as well as cleaning of solar cells, laser hardware, scientific instruments, and high-precision optics, clarifying definition for solvent cleaning; and adding VOC limits for advanced composites manufacturing and baby and child care diapers manufacturing. (EDITOR'S NOTE: The original proposed new rule upon which this change in proposed rule (CPR) was based was published in the July 1, 2017, issue of the Utah State Bulletin, on page 98. 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.)