SEVENTEENTH CONGRESS OF THE 
REPUBLIC OF THE PHILIPPINES 
First Regular Session
S.B. No.
SENATE
1195
BILLS &
Introduced by SEN. WIN GATCHALIAN
AN ACT
PROHIBITING THE USE OF MOTOR VEHICLES WITHOUT MUFFLERS OR 
THOSE THAT ARE DEFECTIVE OR HAVE BEEN MODIFIED WHICH INCREASE 
THE SOUND EMITTED BY MOTOR VEHICLES, PENALIZING OWNERS AND 
DRIVERS THAT CONTRIBUTE TO NOISE POLLUTION IN THE ENVIRONMENT
EXPLANATORY NOTE
Now that the traffic in Metro Manila, has already necessitated the call for an 
emergency power exercise, the concomitant noise emitted by motor vehicles just adds 
to the ordeal that our citizens has to go through every day.
The steady increase of our population continues to trigger the environmental 
hazards of pollution, sad to say that the plague of “noise pollution” has never had 
any definite national policy nor regulation for control. Lumped in the general concept 
of air pollution, the dangers of noise pollution has been ignored or underestimated.
A World Health Organization (WHO) report has suggested that noise - defined 
as an “unwanted sound” can affect human health and well-being, including 
annoyance reaction, sleep disturbance, interference with communication, 
performance effects, and effects on social behavior. It further states that exposure to 
noise levels at or above 80 decibels has been medically proven to cause permanent 
hearing loss. This exposure to noise has also been associated with changes in blood 
pressure, other cardiovascular changes, problems with the digestive system and 
general fatigue.


According to a study conducted by the Asian Development Bank (ADB), the 
growing noise pollution can be attributed to a large part from the millions of two­
wheeled vehicles thundering through our streets and neighborhoods. The study goes 
to show that the tailpipe noise emitted by tricycles produce noise levels as high as 
97 decibels, way too loud for the national standard of 60 decibels during da5dime 
and 50 decibels during nighttime in a residential area.
Motor vehicles with modified mufflers are very distracting and can cause 
accidents since they overpower traffic sounds such as automobile horns and traffic 
enforcer whistles. Further, loud muffler noise agitate drivers as it affects hearing, 
vision, reaction time and judgment thereby increasing the risk of danger for everyone 
on the road.
This bill seeks to regulate the use of mufflers, those that are missing, defective 
and their modifications that increases the sound emitted by a motor vehicles, 
contributing to noise pollution, penalizing owners and drivers that contribute to the 
sound that exacerbate noise pollution to our environment.
In view of the foregoing, passage of this legislations is earnestly sought.
GATCHALIAN


SEVENTEENTH CONGRESS OF THE 
REPUBLIC OF THE PHILIPPINES 
First Regular Session
S.B. No.
SENATE
1195
BILLS
Introduced by SEN. WIN GATCHALIAN
AN ACT
PROHIBITING THE USE OF MOTOR VEHICLES WITHOUT MUFFLERS OR 
THOSE THAT ARE DEFECTIVE OR HAVE BEEN MODIFIED WHICH INCREASE 
THE SOUND EMITTED BY MOTOR VEHICLES, PENALIZING OWNERS AND 
DRIVERS THAT CONTRIBUTE TO NOISE POLLUTION IN THE ENVIRONMENT
Be it enacted by the Senate and the House of Representatives of the Philippines 
in Congress assembled:
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SECTION 1. Short Title. This act shall be known as “Muffler Act of 2016".
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SEC. 2. Deflnition of Terms:
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a. Decibel - refers to a measure of sound level and is equal to 10 times the
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logarithim of the square of a measured sound pressure level (SPL) divided
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by a reference sound pressure.
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b. Emission - refers to any measurable air contaminant, pollutant, gas
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stream or unwanted sound from a known source which is passed into the
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atmosphere.
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c. Motorcycle - refers to any two-wheeled motor vehicle with at least one
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headlight, taillight and stoplight, and one or more saddle seats. For
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purposes of this Act, the term shall likewise include motorcycles to which
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are attached cars, commonly known as “tricycles”.


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d. Motor Vehicle - refers to any vehicle propelled by gasoline engine or by any 
means other than human or animal power constructed and operated 
principally for the conveyance of persons or the transportation of goods in 
a public highway or street open for public use.
e. Muffler - refers to a device that reduces the noise from the exhaust of an 
internal combustion engine.
f. Modified Muffler - refers to a devise attached to a motor vehicle on which 
a sound booster and other sound emitting devise is installed in order to 
increase noise and for other purposes.
g. Noise - refers to any unnecessary, erratic, discordant loud or blaring sound 
which annoy, disturb, distract or offend the senses
h. Noise Pollution - refers to the emission of loud, excessive, disturbing, 
unhealthy sound amplification devices or equipment and/or other sources 
of sound such as, but not limited to commercial, industrial and 
construction activities, vehicle exhaust, mufflers, animal noise, and noise 
produced by human beings such as loud conversation and laughter and 
found to exceed the normal allowable decibel ratio.
i. Nuisance - refers to anything that injures health, endangers life, offends 
the senses or produces discomfort to the community.
j. Unnecessary Noise - refers to any unusually loud sound that annoys, 
disturbs, or endangers the health, peace, safety and comfort of a person or 
causes injury or harm to human beings and animals alike.
SEC. 3. Declaration of Policy. - The protection of the health and well-being 
of the members of the community should be the primordial concern of our society, 
hence, it is imperative that rules are laid down and observed to protect them from 
the dangers of prolonged exposure to noise pollution by unregulated use of motor 
vehicles which by reason of lack of maintenance, deliberate tampering or 
inappropriate use, has missing, defective, or modified mufflers emitting loud and 
unnecessary noise disturbing the peace and harmony of nature.
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Acts that endanger the environment from further degradation and those that
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are discordant with a balanced and healthful development should be controlled and


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abated. Operators and owners of motor vehicles should be made responsible for
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ensuring that noise from their vehicles is kept within reasonable levels.
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SEC. 4. Mufflers and Noise Controlling Devices. - No motor vehicles shall 
be allowed to be driven or operated without having been properly equipped, at all 
times, with either a muffler or any noise dissipative device in constant operation and 
of sufficient capacity to its motor engine to prevent the escape of excessive and 
disturbing noise.
Noise control should include both the exhaust system and engine components 
of a motor vehicle.
SEC. 5. Modified and Defective Muffler. - No motor vehicle, motorcycle, 
motorbike, scooter, tricycle whether for private or public use shall likewise use any 
modified muffler, sound booster or any device that will increase the noise of said 
vehicle or emit a sound of more than seventy (70) decibels.
Any owner or operator of a motor vehicle who has caused or permitted a 
vehicle to be used when its muffler or noise control equipment is defective or not 
securely in place shall likewise be liable under this Act.
SEC. 6. Reasonable Level/Decibel Standard, - Exhaust noise should not 
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exceed the maximum prescribed level of seventy (70) decibels.
SEC. 7. Exception. - Motor vehicles not utilized for transport of goods and 
people but are merely used for sports competition, motor shows and similar 
endeavors are hereby exempted from this Act.
SEC. 8. Noise Pollution Emission Testing. - The Land Transportation Office 
(LTO) shall conduct noise pollution testing upon and during yearly registration of all 
motor vehicles in the country. It shall equip its registration centers with testing 
meters to measure the vehicle’s noise standard of a maximum of seventy (70) 
decibels.
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Registration shall be held in abeyance pending compliance with the standard
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decibel requirement.
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SEC- 9. Penalties. - Any person who drives a motor vehicle without a muffler,
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a defective or modified muffler, sound booster or any device that will increase the


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noise of said vehicle or emit a sound of more than seventy (70) decibels shall be
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penalized as follows;
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a. For the first offense, a fine of five thousand pesos (P5,000.00) and
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confiscation of the modified muffler or sound booster;
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b. For the second offense, a fine of ten thousand pesos (P10,000.00) and
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impoundment of the motor vehicle for a period of one (1) month;
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c. For succeeding offenses, a fine of fifteen thousand pesos (P15,000.00) and
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suspension of the driver’s license of the violator for six (6) months.
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SEC. 10. Implementing Agency.-The Land Transportation Office (LTO) shall 
be the lead government agency in implementing the provisions of this Act. Provided, 
that the LTO may deputize the Metro Manila Development Authority (MMDA) agents, 
local public safety and other officers of the LGU to assist in the implementation of 
this Act.
LTO officers, MMDA agents, and local public safety and order officers, shall 
be equipped with a decibel meter to effectively gauge the intensity of loudness of a 
motor vehicle.
SEC. 11. Appropriations. - The amount needed for the initial implementation 
of this Act shall be charged against the current year’s appropriations of the LTO. 
Thereafter, such amount as may be necessary for the continued implementation of 
this Act shall be included in the General Appropriations Act (GAA).
SEC. 12. Implementing Rules and Regulations. - Within ninety (90) days 
upon the approval of this Act, the DOTr shall, in consultation with the various 
stakeholders, formulate the rules and regulations necessary for the proper 
implementation of this Act.
SEC. 13. Separability Clause. - If any part, section or provision of this Act 
is declared invalid or unconstitutional, the other parts thereof, not affected thereby 
shall remain in full force and effect.
SEC. 14. Repealing Clause. - All laws, acts, presidential decrees, executive 
orders, administrative orders, rules and regulations, or parts thereof, inconsistent 
with or contrary to the provisions of this Act are hereby amended, modified or 
repealed accordingly.
SEC. 15. Effectivity - This Act shall take effect fifteen (15) days after its 
publication in the Official Gazette or in at least two (2) newspapers of general 
circulation.
Approved,