40 CFR 87.2 - Acronyms and abbreviations.

§ 87.2 Acronyms and abbreviations. Link to an amendment published at 77 FR 36381, June 18, 2012.
The abbreviations used in this part have the following meanings in both upper and lower case:
COCarbon Monoxide
CO2Carbon dioxide.
FAAFederal Aviation Administration, Department of Transportation
LTOLanding takeoff
NOXOxides of nitrogen
rORated output
rPRRated pressure ratio
SPShaft power
SNSmoke number
TTemperature, degrees Kelvin
TIMTime in mode
[47 FR 58470, Dec. 30, 1982, as amended at 49 FR 31875, Aug. 9, 1984; 62 FR 25365, May 8, 1997; 74 FR 56374, Oct. 30, 2009]
Effective Date Note:
At 77 FR 36381, June 18, 2012, § 87.2 was revised, effective July 18, 2012. For the convenience of the user, the revised text is set forth as follows:
§ 87.2 Abbreviations.
The abbreviations used in this part have the following meanings:
COcarbon monoxide
CO2carbon dioxide
LTOlanding and takeoff
NOXoxides of nitrogen
rOrated output
rPRrated pressure ratio
SNsmoke number
Beta! The text on the eCFR tab represents the unofficial eCFR text at ecfr.gov.
§ 87.2 Abbreviations.

The abbreviations used in this part have the following meanings:

% percent
° degree
CO carbon monoxide
CO2 carbon dioxide
g gram
HC hydrocarbon(s)
kN kilonewton
kW kilowatt
LTO landing and takeoff
NOX oxides of nitrogen
rO rated output
rPR rated pressure ratio
SN smoke number
[77 FR 36381, June 18, 2012]

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

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United States Code

Title 40 published on 2015-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR Part 87 after this date.

  • 2015-07-29; vol. 80 # 145 - Wednesday, July 29, 2015
    1. 80 FR 45131 - Proposed Finding That Greenhouse Gas Emissions From Aircraft Cause or Contribute to Air Pollution That May Reasonably Be Anticipated To Endanger Public Health and Welfare and Advance Notice of Proposed Rulemaking; Notice of Updates to Public Hearing
      GPO FDSys XML | Text
      Updates to public hearing.
      The EPA will hold a public hearing on August 11, 2015 in Washington, DC starting at 10 a.m. local time.
      40 CFR Parts 87 and 1068