South Korea: Nonroad: Emissions

Overview

US Tier 4 standards are currently in place for non-road engines.

Standard type
Conventional pollutant emission limits

Current Standard
US Tier 4 in 2015

Applicability
New nonroad vehicles and equipment (i.e. construction and agricultural machinery)

History

South Korea began regulating nonroad engine emissions in 2004 with standards that applied to construction machinery including excavators, loaders, forklifts (excluding electric), cranes, bulldozers, and rollers. In 2005, standards became harmonized with the US nonroad emissions standards, beginning with US Tier 2. In 2009 US Tier 3 standards were adopted. In 2013, agricultural machinery began to be regulated in addition to construction machinery, also under US Tier 3.

As of 2015, standards for both construction and agricultural machinery have been tightened to US Tier 4.

Limit values are established through The Clean Air Conservation Act Enforcement Rules (대기환경보전법 시행규칙) (Korean only), available at the website of the Ministry of Government Legislation.

Technical Standards

Emissions Standards for Construction Machinery Engines

Emissions Limits for Construction Machinery Engines
Implementation Date Reference Standard Engine Power CO NOx HC PM Test Cycle
kW g/kWh
1 Jan 2004 19-37 5.5 9.5 0.8 KC1-8
37-75 5.5 9.2 1.3 0.6
75-130 5.0 9.2 1.3 0.6
130-225 5.0 9.2 1.3 0.54
225-560 5.0 9.2 1.3 0.54
1 Jan 2005 US Tier 2 19-37 5.5 7.5 0.6 KC1-8
37-75 5.0 7.5 0.4
75-130 5.0 6.6 0.3
130-225 3.5 6.6 0.2
225-560 3.5 6.4 0.2
1 Jan 2009 US Tier 3 19-37 5.5 7.5 0.6 ISO8178, C1-8 Mode
37-75 5.0 4.7 0.4
75-130 5.0 4.0 0.3
130-560 3.5 4.0 0.2
1 Jan 2015 US Tier 4 <8 8.0 7.5 0.4 NRSC, NRTC
8-19 6.6 7.5 0.4
19-37 5.5 4.7 0.03
37-75 5.0 4.7 0.03
75-130 5.0 0.19 0.4 0.025
130-560 3.5 0.19 0.4 0.025

Emissions Standards for Agricultural Machinery Engines

Emissions Limits for Agricultural Machinery Engines
Implementation Date Reference Standard Engine Power CO NOx HC PM Test Cycle
kW g/kWh
2 Feb 2013 US Tier 3 225-560 3.5 4.0 0.2 ISO8187, C1-8 Mode
1 July 2013 US Tier 3 19-37 5.5 7.5 0.3
37-75 5.0 4.7 0.4
75-130 5.0 4.0 0.3
130-560 3.5 4.0 0.2
1 Jan 2015 US Tier 4 <8 8.0 7.5 0.4 NRSC, NRTC
8-19 6.6 7.5 0.4
19-37 5.5 4.7 0.03
37-75 5.0 4.7 0.03
75-130 5.0 0.19 0.4 0.025
130-560 3.5 0.19 0.4 0.025

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