### Response to Comments for the Proposed Nebraska Cross-State Air Pollution Rule State Implementation Plan
On February 19, 2015, the Nebraska Departm ent of Environmental Quality (NDEQ) issued a public notice that the NDEQ was accepting comments on the proposed State Implementation Plan (SIP) to replace t he Environmental Protection Agency’s (EPA) Federal Implementation Plan (FIP) for the allocation of 2016 emission allowances to power plants under the EPA’s Cross-State Air Pollution Rule (CSAPR). The comment period closed on March 23, 2015. The NDEQ provided the opportunity for a public hearing if requested by the close of the co mment period. As no request for a public hearing was received by the close of comment per iod, the public hear ing was cancelled. The following is a response to the comments received during the comment period. The NDEQ appreciates the feedback from those w ho provided input into the process.

Comment #1:
A comment was received concerning a unit that is subject to CSAPR but is classified as a “new unit”. The commenter acknowledged that it was a new unit and would receive its allocations from the New Unit Set Aside ac count, but asked if the public notice should include the New Unit Set Aside allocations for this unit?
Response:
The proposed CSAPR SIP does not allocate a llowances for units that receive their allowances from the New Unit Set Aside ac count. The New Unit Set Aside allowances are distributed by the EPA for 2016. If Nebraskadecides to submit a SIP to replace the FIP in 2017 and beyond, the state will be in cont rol of the allowances in the New Unit Set Aside account and could di stribute them accordingly.

Comment #2:

Two commenters noted that the allocations in the proposed SIP were identical to the allocations in the proposed FIP.
Response:

NDEQ is aware that the allocations in the proposed SIP are identical to the allocations in the proposed FIP. In consultation with Ne braska electric generators that are subject to CSAPR, it was decided thatalthough the electric gener ators did not dispute the fairness of the EPA’s allocations in the FIP, the state wanted to maintain authority overthe allocation process. Therefore a SIP wa s developed utilizing the allocations from the FIP. If Nebraska continues to utilize a SIP in future years for CSAPR allocations, the state, in consultation with the subject electric utilitie s, will determine whether the allocation formula should be amended and how t he New Unit Set Aside allocations will be utilized.

Comment #3:

One comment was received that identified a potential typographical error in the public notice. In describing which el ectric utilities are subject to CSAPR in the public notice, it stated that CSAPR “... limits t he emissions of sulfur diox ide and nitrogen oxides from electric generators with a nam eplate capacity of 25 MWe and pr oducing power for sale”. The commenter noted that CSAPR only applies to “Any stationary, fossil –fuel- fired combustion turbine serving at any time, on or after January 1, 2005, a generator with a nameplate capacity of more than 25 MW e producing electricity for sale”.
Response: The commenter is correct that this was a typo. The CSAPR SIP is only for electric generators with a nameplate capacity of more than 25 MWe, not electric generators of 25 MWe.