Regulatory Authorities

Vehicle emission standards are established in Singapore by the Pollution Control Department (PCD) of the Ministry of the Environment.

New Vehicle and Engine Regulations

Light-Duty Highway Vehicles

With effect from 1 October 1991, all motorcycles/scooters must comply with the US 40 CFR 86.410-80 Emission Standard before they can be registered in Singapore.

With effect from 1 July 1994, all petrol-driven vehicles are required to comply with the exhaust emission standard as specified in either the European Directive 91/441/EEC (CED) or Article 31 of the Japanese Safety Regulations for Road Vehicles. To comply with these emission standards, all petrol-driven vehicles are fitted with catalytic converters.

With effect from 1 July 1998, all diesel-driven vehicles must comply with the exhaust emission standard as specified in the European Directive 93/59/EEC for light duty vehicles with maximum laden weight (MLW) of 3,500 kg or less, before these vehicles can be registered for use in Singapore.

With effect from 1 Jan 2001, all petrol and diesel-driven vehicles must comply with the exhaust emission standard as specified in the European Directive 96/69/EC for light duty vehicles (Euro II) with maximum laden weight (MLW) of 3,500 kg or less.

Heavy-Duty Highway Vehicles

With effect from 1 July 1998, all diesel-driven vehicles must comply with the Euro I exhaust emission standard as specified in the European Directive 91/542/EEC Stage I for heavy vehicles with MLW of more than 3,500 kg before these vehicles can be registered for use in Singapore.

With effect from 1 Jan 2001, all petrol and diesel-driven vehicles must comply with the Euro II exhaust emission standard, as specified in the European Directive 91/542/EEC Stage II for heavy vehicles with MLW of more than 3,500 kg, before these vehicles can be registered for use in Singapore.

Off-Road Engines

With effect from 1 Aug 2000, all off-road diesel engines are required to comply with either Japan, US Tier 1 or EU Stage I off-road diesel exhaust emission standards. Any equipment or machinery that is equipped with diesel engines as the main or auxiliary prime mover and not registered for use on public roads requires to have a permit prior to the import of such equipment. The application form is to be submitted to the Pollution Control Department (PCD) one month prior to the import of the equipment. The form is available for downloading under the downloadable forms page in the Ministry’s website.

For the purpose of this regulation, off-road diesel engine means any diesel engine that is used as the main or auxilliary power source for any equipment or machinery, but shall not include such diesel engine if -(a) it is part of a ship, railway locomotive or aircraft, or (b) it is part of any motor vehicle registered with the Land Transport Authority.

The same emission permit requirements apply to imports of both new and re-built off-road engines.

In-Use Vehicles

All vehicles are subject to mandatory periodic inspections. During such inspections, emissions are tested to ensure that they comply with the prescribed standard.

The PCD takes stringent enforcement actions against smoky vehicles on the roads. Clause 19 of the Environmental Pollution Control rule (Vehicular Emissions) stipulates that it is an offence for any person to use or permit the use of any smoky vehicle on the road.

It is the responsibility of every owner of a vehicle to ensure that the vehicle is in good condition before using it on the road. This includes proper service, maintenance, and operation of the vehicle, as specified in the vehicle manufacturer’s manual.

This article based on information submitted by the Strategic Planning & Research Department of the Ministry of the Environment.