Section 21June 23, 1999, Sec./Art. 21

Pollution from Motor Vehicles. - a) The DOTC shall implement the emission standards for motor vehicles set pursuant to and as provided in this Act. To further improve the emission standards, the Department shall review, revise and publish the standards every two (2) years, or as the need arises. It shall consider the maximum limits for all major pollutants to ensure substantial improvement in air quality for the health, safety and welfare of the general public.

The following emission standards for type approval of motor vehicles shall be effective by the year 2003:

a) For light duty vehicles, the exhaust emission limits for gaseous pollutants shall be:

Emission Limits for Light Duty Vehicles

Type Approval

(Directive 91/441/EEC)

CO

(g/km)

HC + NOx

(g/km)

PMa

(g/km)

2.72

0.970.14

a for compression-ignition engines only

b) For light commercial vehicles, the exhaust emission limit of gaseous pollutants as a function of the given reference mass shall be:

Emission Limits for Light Commercial Vehicles

Type Approval

(Directive 93/59/EEC)

Reference Weight (RW) (kg)

CO (g/km)

HC + NOx (g/km)

PMa (g/km)

Category 1

1250< RW

2.72

0.97

0.14

Category 2

1250< RW<1700

5.17

1.4

0.19

Category 3

RW>1700

6.9

1.7

0.25

a for compression-ignition engines only

c) For heavy duty vehicles, the exhaust emission limits of gaseous pollutants shall be:

Emission Limits for Heavy Duty Vehicles

Type Approval

(Directive 91/542/EEC)

CO

(g/k/Wh)

HC

(g/k/Wh)

NOx

(g/k/Wh)

PM

(g/k/Wh)

4.5

1.1

8.0

0.36a

a In the case of engines of 85 kW or less, the limit value for particular emissions in increased by multiplying the quoted limit by a coefficient of 1.7

Fuel evaporative emission for spark-ignition engines shall not exceed 2.0 grams hydrocarbons per test. Likewise, it shall not allow any emission of gases from crankcase ventilation system into the atmosphere.

b) The Department, in collaboration with the DOTC, DTI and LGUs, shall develop an action plan for the control and management of air pollution from motor vehicles consistent with the Integrated Air Quality Framework. The DOTC shall enforce compliance with the emission standards for motor vehicles set by the Department. The DOTC may deputize other law enforcement agencies and LGUs for this purpose. To this end, the DOTC shall have the power to:

(1) Inspect and monitor the emissions of motor vehicles;

(2) Prohibit or enjoin the use of motor vehicles or a class of motor vehicles in any area or street at specified times; and

(3) Authorize private testing emission testing centers duly accredited by the DTI.

c) The DOTC, together with the DTI and the Department, shall establish the procedures for the inspection of motor vehicles and the testing of their emissions for the purpose of determining the concentration and/or rate of pollutants discharged by said sources.

d) In order to ensure the substantial reduction of emissions from motor vehicles, the Department of Trade and Industry (DTI), together with the DOTC and the Department shall formulate and implement a national motor vehicle inspection and maintenance program that will promote efficient and safe operation of all motor vehicles. In this regard, the DTI shall develop and implement standards and procedures for the certification of training institutions, instructors and facilities and the licensing of qualified private service centers and their technicians as prerequisite for performing the testing, servicing, repair and the required adjustment to the vehicle emission system.

The DTI shall likewise prescribe regulations requiring the disclosure of odometer readings and the use of tamper-resistant odometers for all motor vehicles including tamper-resistant fuel management systems for the effective implementation of the inspection and maintenance program.