[Federal Register Volume 77, Number 211 (Wednesday, October 31, 2012)]
[Rules and Regulations]
[Pages 65823-65824]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: C1-2012-13828]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 87

[EPA-HQ-OAR-2010-0687; FRL-9678-1]
RIN 2060-AO70


Control of Air Pollution From Aircraft and Aircraft Engines; 
Emission Standards and Test Procedures

Correction

    In rule document 2012-13828 appearing on pages 36341-36386 in the 
issue of Monday, June 18, 2012, make the following corrections:


Sec.  87.23  [Corrected]

    1. On page 36382, in Sec.  87.23, the table titled ``Table 3 to 
Sec.  87.23--Tier 6 NOX Standards for New Subsonic Turbofan 
or Turbojet Engines with Rated Output Above 26.7 kN'' should read as 
set forth below:

               Table 3 to Sec.   87.23--Tier 6 NOX Standards for New Subsonic Turbofan or Turbojet Engines With Rated Output Above 26.7 kN
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                           and the rated output (in kN)
     If the rated pressure ratio is--                  is--                           The NOX emission standard (in g/kN rated output) is--
--------------------------------------------------------------------------------------------------------------------------------------------------------
rPR <= 30................................  26.7 < rO <= 89.............  38.5486 + 1.6823[middot]rPR - 0.2453[middot]rO - 0.00308[middot]rPR[middot]rO
                                           rO > 89.....................  16.72 + 1.4080[middot]rPR
30 < rPR < 82.6..........................  26.7 < rO <= 89.............  46.1600 + 1.4286[middot]rPR - 0.5303[middot]rO + 0.00642[middot]rPR[middot]rO
                                           rO > 89.....................  -1.04 + 2.0[middot]rPR
rPR >= 82.6..............................  all.........................  32 + 1.6[middot]rPR
--------------------------------------------------------------------------------------------------------------------------------------------------------

    2. On page 36383, in Sec.  87.23, the table titled ``Table 4 to 
Sec.  87.23--Tier 8 NOX Standards for New Subsonic Turbofan 
or Turbojet Engines with Rated Output Above 26.7 kN'' should read as 
set forth below:

               Table 4 to Sec.   87.23--Tier 8 NOX Standards for New Subsonic Turbofan or Turbojet Engines With Rated Output Above 26.7 kN
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                           and the rated output (in kN)
     If the rated pressure ratio is--                  is--                           The NOX emission standard (in g/kN rated output) is--
--------------------------------------------------------------------------------------------------------------------------------------------------------
rPR <= 30................................  26.7 < rO <= 89.............  40.052 + 1.5681[middot]rPR - 0.3615[middot]rO - 0.0018[middot]rPR[middot]rO
                                           rO > 89.....................  7.88 + 1.4080[middot]rPR
30 < rPR < 104.7.........................  26.7 < rO <= 89.............  41.9435 + 1.505[middot]rPR - 0.5823[middot]rO + 0.005562[middot]rPR[middot]rO
                                           rO > 89.....................  -9.88 + 2.0[middot]rPR

[[Page 65824]]

 
rPR >= 104.7.............................  all.........................  32 + 1.6[middot]rPR
--------------------------------------------------------------------------------------------------------------------------------------------------------


[FR Doc. C1-2012-13828 Filed 10-30-12; 8:45 am]
BILLING CODE 1505-01-D