Title 40

PART 51 APPENDIX



Appendix A to Subpart A of Part 51 - Tables

40:2.0.1.1.2.1.8.12.23 : Appendix A

Appendix A to Subpart A of Part 51 - Tables

Table 1 to Appendix A of Subpart A - Emission Thresholds 1 by Pollutant for Treatment as Point Source Under 40 CFR 51.30

Pollutant Every-year Triennial
Type A sources 2 Type B sources NAA sources 3
(1) SO2 ≥2500 ≥100 ≥100.
PM2.5 (Serious) ≥70.
(2) VOC ≥250 ≥100 ≥100.
within OTR 4 ≥50 within OTR ≥50.
O3 (Serious) ≥50.
O3 (Severe) ≥25.
O3 (Extreme) ≥10.
PM2.5 (Serious) ≥70.
(3) NOX ≥2500 ≥100 ≥100.
O3 (Serious) ≥50.
O3 (Severe) ≥25.
O3 (Extreme) ≥10.
PM2.5 (Serious) ≥70.
(4) CO ≥2500 ≥1000 ≥1000.
CO (all areas) ≥100.
(5) Lead ≥0.5 (actual) ≥0.5 (actual).
(6) Primary PM10 ≥250 ≥100 ≥100.
PM10 (Serious) ≥70.
(7) Primary PM2.5 ≥250 ≥100 ≥100.
PM2.5 (Serious) ≥70.
(8) NH3 ≥250 ≥100 ≥100.
PM2.5 (Serious) ≥70.