./.WORLD TRADE
ORGANIZATIONG/TBT/Notif.99.401
26 August 1999
(99-3544)
Committee on Technical Barriers to Trade
NOTIFICATION
The following notification is being circulated in accordance with Article 10.6.
1. Member to Agreement notifying:   THAILAND
If applicable, name of local government involved (Articles 3.2 and 7.2):           
2. Agency responsible:   Thai Industrial Standards Institute (TISI)
Agency or authority designated to handle comments regarding the notification shall be
indicated if different from above:           
3. Notified under Article 2.9.2 [     ], 2.10.1 [ X ], 5.6.2 [    ], 5.7.1 [    ], other:           
4. Products covered (HS or CCCN where applicable, otherwise national tariff heading.
ICS numbers may be provided in addition, where applicable):   Internal Combustion
Engines (ICS:  27.020), transport exhaust emissions (ICS:13.040.50)
5. Title, number of pages and language(s) of the notified document:   TIS 1875-2542
(1999) Standard for Light-Duty Engined Vehicles:  Safety Requirements;  Emission from
Engine, Level 5 (15 pages, available in Thai)
6. Description of content:   The Thai Industrial Standards Institute (TISI) has proposed to
enforce TIS 1875-2542 (1999) as a mandatory standard.  The standard specifies Level 5 as
limits for gaseous pollutants (i.e. carbon monoxide, hydrocarbon combined with oxides of
nitrogen) emitted from light-duty engined vehicles.  Covers the following engined vehicles:
(1) Passenger cars not more than nine seats
(2) Trucks with gross mass not exceeding 3,500 kg. except for those conformed
to the latest standard for heavy-duty diesel engined vehicles:  safety
requirements:  emission from engine.
(3) Passenger cars modified from trucks with gross mass not exceeding
3,500 kg. (unlimited seats)
Excludes two-stroke engined vehicles and vehicles with unladen mass less than
400 kg. and designed speed not exceeding 50 km./hour.  Specifies requirements for
type approval and production quality assurance.
- As for type approval test (emission after cold start) limits for gaseous
pollutants from engine of passenger cars not more than six seats shall be less than
limit given in table as follows:G/TBT/Notif.99.401
Page 2
Carbon Monoxide
(g./km.)Hydrocarbon
combined with oxide
of nitrogen
(g./km.)Particulate pollutants
(g./km.)
1.0 0.7 (0.9) 0.08 (0.10)
- As for type approval test (emission after cold start) limits for gaseous pollutantsfrom engine of passenger cars more than six seats or gross vehicle weight exceeding
2500 kg., trucks and passenger cars modified from trucks with gross vehicle weight
exceeding 3500 kg. shall be less than limit given in table as follows:
Reference mass
(kg.)Carbon
Monoxide
(g./km.)Hydrocarbon
combined
with oxide of
nitrogen
(g./km.)Particle pollutants
(g./km.)
Not exceeding 1250 1.0 0.7 (0.9) 0.08 (0.10)
Over 1250 up to
17001.25 1.0 (1.3) 0.12 (0.14)
Over 1700 1.5 1.2 (1.6) 0.17 (0.20)
Includes marking, labelling, sampling, criteria for conformity and testing
7. Objective and rationale, including the na ture of urgent problems where applicable:   
Safety requirement and environmental protection
8. Relevant documents:
(1) Relevant document:
- TIS 1285-2538 (1995) Standard for Light-Duty Diesel Engined
Vehicles:  Safety Requirements:  Emission from Engine, Level 2
(2) Publication in which the proposal will be published when adopted:
- Government Gazette
9. Proposed date of adoption:
Proposed date of entry into force: }To be determined
10. Final date for comments:   60 days from the circulation date
11. Texts available from:  National enquiry point [  X ] or address, e-mail and telefax
number of the other body: