Since the application of New Source Review (NSR) regulation in themid-1970’s, process vents of any new or modified source with emission increases must meet the Best Available Control Technology (BACT) standards, which, for VOC sources, usually means venting to a combustion device meeting a specified destruction or reduction efficiency.
 
自20世纪70年代中期开始执行新排放源评估（NSR）规定以来，任何增加排放的新排放源或改性排放源，其工艺废气必须符合最佳可行控制技术（BACT）标准。这对于挥发性有机物排放源，通常意味着燃烧设备的通风口必须符合指定的破坏或去除效率标准。
 
In non-attainment areas such as the Los Angeles region, the residual VOC emissions also must be offset by an equivalent or greater amount of emissions reduction credits (ERCs) such that there are no net emission increases for the region.
 
在洛杉矶地区等未达标区域，残余挥发性有机物排放量必须以相等或更高的减排额度（ERC）抵消，避免该地区出现净排放量增长。
 
The urgent needs for further VOC control since the 1990’s have pushed all stakeholders to more closely examine and identify all additional sources and/or more effective control measures. Among them, the Leak Detection and Repair (LDAR) programs for millions of fugitive components, further control of storage tank evaporative emissions, control of emissions from waste water systems, and flare gas monitoring/recovery were some of the more recent key developments.
 
自20世纪90年代以来，进一步加强挥发性有机物排放控制变得日益紧迫，促使所有利益相关者更重视研究和发现所有其他排放源和/或更有效的控制措施。其中，最近出台的控制措施包括针对数百万个逸散排放组件的泄漏检测与修复（LDAR）计划、加强控制储油罐蒸发性排放、控制废水系统排放以及火炬气监控/回收等。