دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: (LAER) an air emission standard determined by the states on a case-by-case basis. LAER is applied in nonattainment areas, which do not meet NAAQS, and is more stringent than the BACT applied in attainment areas. Consequently, cost and economic impact are not taken into consideration in determining LAER.