Table 1. – Summary of Possible Options for Effective Dates of PM2.5
Increments following Promulgation of this Rule



Effective Date of Final Rule	SIP Submission Deadline	SIP approval 

Deadline	Implementation Date of Final Rule	Revocation of PM10 Increment

Proposed Option 1







	Federal Program

(40 CFR 52.21)	12 months  or (Requesting comment on 60 days)	

_________	

_________	12 months or 

(Requesting comment on 60 days) or

(Requesting comment on 25 months to make it equitable with SIP approved
States)

	12 months or 

(Requesting comment on 60 days) or

(Requesting comment on 25 months to make it equitable with SIP approved
States)



	State Program

(40 CFR 51.166)	

12 months

or (Requesting comment on 60 days)	

21 months 

	

25 months	Upon EPA’s final approval	Upon EPA’s final approval

Proposed Option 2







	Federal Program	60 days	________	_________	60 days	60 days

	State Program	

≤ 36 months

(Requesting comment on 21 months to make it consistent with option 1)	12
months from complete SIP submission	Upon EPA’s final approval	Upon
EPA’s final approval



