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Exhaust Emission Standards
In El Salvador, vehicle exhaust emission limits are set in the standard NSO 13.11.03:01, published in the Official Journal No. 360 on June 4, 2003, and applicable six months after its publication.
Emission limits for diesel vehicles are shown in the table below.
Emission limits for diesel vehicles
Vehicle type
Before January 1, 1998
After January 1, 1999
Microbuses and vehicles <3.0 tonnes
Opacity (%)
70
60
Opacity (K)
2.8
Vehicles turbocharged <3.0 tonnes
Opacity (%)
80
70
Opacity (K)
3.5
2.8
Buses or vehicles ≥3.0 tonnes
Opacity (%)
80
70
Opacity (K)
3.5
Source: Ministry of Economy
Emission limits for spark-ignition vehicles are shown in the table below. The regulated pollutants are hyd
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Exhaust Emission Standards