What is an abbreviated CAIR SIP revision? How is that different from a full CAIR SIP revision?
The final CAIR FIP (71 FR 25328) provides that each CAIR state has the option to submit limited SIP revisions – called “abbreviated SIP revisions” – that address only certain specified elements of the FIP trading programs, in lieu of submitting full SIP revisions to meet the CAIR requirements. A state can choose to submit an abbreviated SIP revision for one or more of the applicable CAIR programs in its state (i.e., for the SO2, NOx annual, or NOx ozone season program). By using an abbreviated SIP revision, a state modifies the application of certain provisions of the FIP trading program in its state. An abbreviated SIP revision doesn’t replace a FIP trading program. In a state with an approved abbreviated SIP revision for a FIP trading program, the FIP program remains in force in the state, EPA is the implementing authority, and certain provisions in the FIP are modified by the abbreviated SIP to meet the state’s needs. Like a full SIP revision, an abbreviated SIP revision is subject
