24-hour fine particulate matter NAAQS
85 FR 73229
11/17/2020
Update Type
Final Rules

SIP Approval: Utah (determination of attainment by the attainment date for the Salt Lake City and Provo 2006 24-hour fine particulate matter serious nonattainment areas).

85 FR 73229
Volume
51
Issue
1
Update Volume
50
Update Issue
34
85 FR 71023
11/06/2020
Update Type
Proposed Rules

SIP Proposal: Utah (redesignation to attainment and maintenance plan for the Salt Lake City and Provo 2006 24-hour fine particulate matter nonattainment areas).

85 FR 71023
Volume
51
Issue
1
Update Volume
50
Update Issue
33
84 FR 14267
04/10/2019
Update Type
Final Rules

SIP Approval: Utah (clean data determination for the Provo, Utah, 2006 24-hour fine particulate matter nonattainment area).

84 FR 14267
Volume
49
Issue
6
Update Volume
49
Update Issue
11
84 FR 3373
02/12/2019
Update Type
Proposed Rules

SIP Proposal: Utah (clean data determination for the Provo, Utah, 2006 24-hour fine particulate matter nonattainment area).

84 FR 3373
Volume
49
Issue
4
Update Volume
49
Update Issue
6
84 FR 3305
02/12/2019
Update Type
Final Rules

SIP Approval: California (2006 24-hour fine particulate matter (PM2.5) NAAQS for the Los Angeles-South Coast air basin PM2.5 nonattainment area).

84 FR 3305
Volume
49
Issue
4
Update Volume
49
Update Issue
6
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