TECHNICAL CODE ON ENIISSION OF NITROGEN OXIDES FROM MARINE I)IESEL ENGINES
Chapter 1 - GENERAL
1.1 PURPOSE
The purpose of the technical Code on Emission of Nitrogen Oxides from Marine Diesel Engines, hereunder referred to as the ('title. is tsr specify the requirements fir the resting, survey and certification of marine diesel engines in order that they may comply with the nitrogen insides (NOx) emission limits of regulation 13 of Annex VI of MARPOL 73/78.
1.2 APPLICATION
1.2.1 This Code applies to all diesel engines wills a power output of more than 130 kW which are installed, or are intended for installation, on board strips regardless of size (regulation I 3 of Annex VI). Regarding the requirements for survey and certification of the ship, which apply to strips of 400 gross tonnage or shrive or of which the total strips installed power is more than 15110 kW (regulation 5 of Annex VI), this Code addresses sink those requirements applicable to an engine's compliance with the NOx emission limits.
1.2.2For die purpose of the application of this Code, Administrations are entitled to delegate, except where other-wise specified herein, all functions required of art Administration by this Code to an organization authorized to act on behalf of the Administration.
1.3 DEFINITIONS
1.3.1Nitrogen Oxide (NOx) Emissions means the total emission of nitrogen oxides, calculated as the total weighted emission of NC). and determined using the relevant test cycles and measurement methods as specified in this Code.
13.2Substantial modification of marine diesel engine means:
.1 For engines installed art ships constructed on or after 1 January 2000, substantial modification means any modification to as engine that could potentially cause the engine to exceed the emission standards set out its regulation 13 of Annex VI. Routine replacements of engine components by pans specified in the technical File that do not alter emission characteristics as described above shall not be considered a "substantial modification" regardless of whether one pan or many parts are replaced.
.2 For engines installed on strips constructed before 1 January 2000, substantial modification means any modification made to an engine which increases its existing emission characteristics. These changes include, bus are not limited to, changes in its operations or in its technical parameters (e.g., changing camshafts, fuel injection systems, air systems, combustion chamber configuration, or timing calibration of the engine).
MEPC 39/6/I
ANNEX
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1.3.3Components are those interchangeble parts which influence the NOx emissions performance, identified by their design/parts number.
1.3.4Setting means adjustment of an adjustable feature influencing the NOx, emissions performance.
1.3.5Operating values are engine data, like cylinder peak pressure, exhaust gas temperature, etc., from the engine log which are related to the NOx emission performances. These data are load-dependent.
1.3.6The EIAPP Certificate is the Engine International Air Pollution Prevention Certificate.
1.3.7The EIAPP Certificate is the International Air Pollution Prevention Certificate.
1.3.8 Administration means the Government of the State whose flag the ship is entitled to fly.
1.3.9 A ready means of verification means a procedure and/or equipment requirement to be used to verify compliance with any of the requirements of this Code as specified by the engine manufacturer and approved by the Administration. The procedure and/or equipment requirement, approved by the Administration, shall be recorded and maintained in the engine's Technical File.
1.3.10Marine diesel engine means any reciprocating internal combustion engine operating on liquid or dual fuel, to which regulations 5, 6 and 13 of Annex VI apply, including booster/compound systems if applied.
1.3.11 Rated power means the maximum continuous rated power output as specified on the name plate and in the Technical File of the marine diesel engine to which regulation 13 of Annex VI and the NOx Technical Code apply.
1.3.12Rated speed is the crankshaft revolutions per minute at which the rated power occurs as specified on the nameplate and in the Technical File of the marine diesel engine.
1.3.13Total installed power means the sum of the maximum continuous rated power as specified on the name plates and in tire technical Files of all marine diesel engines installed on board to which regulation 13 of Annex VI and the NOx Technical Code apply.
1.3.14Brake power is the observed power measured at the crankshaft or its equivalent, the engine being equipped only with the standard auxiliaries necessary for its operation on the test bed.
1.3.15On-board conditions mean that an engine is:
.1 installed on board and coupled with the actual equipment which is driven by the engine;
and
.2 under operation to perform the purpose of the equipment.
Chapter 2 - SURVEYS AND CERTIFICATION
2.1 GENERAL
2.1.1Each marine diesel engine specified in 1.2, except as otherwise permitted by this Code, shall be
