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Oklahoma Infrastructure SIPs  
 

Beginning with the 1997 PM2.5 and Ozone NAAQS, EPA has required the state to submit a demonstration that Oklahoma's State Implementation Plan (SIP) meets the "infrastructure" requirements of CAA Section 110(a)(2)(A)-(M) to implement, maintain, and enforce the National Ambient Air Quality Standards (NAAQS) each time a NAAQS is issued or revised. Recent "Infrastructure SIPs" or "I-SIPs" have been prepared under EPA's September 2013 Guidance on Infrastructure State Implementation Plan (SIP) Elements under Clean Air Act Sections 110(a)(1) and 110(a)(2). A notice providing an opportunity for the public to comment and/or request a public hearing on each proposed I-SIP (beginning with the 2006 24-Hour PM2.5 NAAQS) is posted on AQD's Rules & Planning page. Each I-SIP is then archived on this page once it is finalized and submitted to EPA for review and action.

NAAQS

Certification Letter

Checklist

Public Notice

Hearing Record, Comments, and Response to Comments

Date Sent to EPA

EPA Action

2012 Primary PM2.5

Letter

Checklist

Notice

No Comments or
Hearing Request Received (Notice of Hearing Cancellation)

6/20/16

Proposed approval 81FR83184

2010 Primary SO2

Letter (as proposed)

Checklist (as proposed)

Notice

Comments (and Exhibits) Response to Comments
No Hearing Request Received (Notice of Hearing Cancellation)

2/10/15

Approved 12/9/16, 81FR89008

2008 Primary & Secondary Ozone

Letter (as proposed)

Checklist (as proposed)

Notice

Comments (and Exhibits) Response to Comments
No Hearing Request Received (Notice of Hearing Cancellation)

2/9/15

Approved 12/9/16, 81FR89008

2010 Primary NO2

Letter

Checklist

Notice

No Comments or Hearing Request Received (Notice of Hearing Cancellation)

2/28/14

Approved 12/9/16, 81FR89008

2008 Lead (Pb)

Letter

Checklist

Notice

No Comments or Hearing Request Received (Notice of Hearing Cancellation)

10/5/12

Approved 12/9/16, 81FR89008

2006 24-Hour PM2.5

Letter

Checklist

N/A

N/A

4/5/11

Approved 1/26/2012, 77FR3933

1997 PM2.5

Letter

Checklist

N/A

N/A

6/24/10

Approved 1/26/2012, 77FR3933

1997 8-Hour Ozone

Letter

N/A

N/A

N/A

12/5/07

Approved 1/26/2012, 77FR3933

 

 

Page last updated: February 22, 2017

 

 

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