US lawUtahRegulationsAgency 13 — Environmental QualityProgram 307 — Air QualityR307-405 — Permits: Major Sources in Attainment or Unclassified Areas (PSD)R307-405-7R307-405-7R307-405-7. Ambient Air CeilingsLast amended: 2023Length: 11 wordsOfficial source Cite as Utah Admin. Code R307-405-7The provisions of 40 CFR 52.21(d) are hereby incorporated by reference.PreviousR307-405-6NextR307-405-8