WORLD TRADE
ORGANIZATIONG/TBT/Notif.99.54
11 February 1999
(99-0551)
Committee on Technical Barriers to Trade
NOTIFICATION
The following notification is being circulated in accordance with Article 10.6.
1. Member to Agreement notifying:  UNITED STATES
If applicable, name of local government involved (Articles 3.2 and 7.2):           
2. Agency responsible:  Environmental Protection Agency (4)
Agency or authority designated to handle comments regarding the notification shall beindicated if different from above:           
3. Notified under Article 2.9.2 [ X ], 2.10.1 [    ], 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):  Spark ignition engines(HS Chapter 8407)
5. Title, number of pages and language(s) of the notified document:  Control of Air Pollution:
Minor Amendments to Emission Requirements Applicable to Small Non-Road Spark
Ignition Engines and Marine Spark Ignition Engines (8 pages, English)
6. Description of content:  This document pro poses to amend provisions of two existing rules
applicable to non-road engines.  This document proposes amendments to regulations
applicable to small spark ignitions (Small SI) engines under 19 kilowatts and proposes
specifically to revise the applicability of that  rule to certain engines used in recreational
applications and to revise the applicability of the handheld emission standards toaccommodate cleaner but heavier four stroke engines.  This document also proposes to
amend regulations applicable to marine spark ignition (Marine SI) engines to provide
compliance flexibility for small volume engine manufacturers during the standards phase-in
period.  Lastly, this proposal contains a minor revision to the existing replacement engine
provisions for Small SI and Marine SI engines to address issues that may arise concerningthe importation of such engines.  No significant air quality impact is expected from these
amendments.
7. Objective and rationale, including the nature of urgent problems where applicable:
Environmental protection
8. Relevant documents:  64 FR 5251, 3 February 1999;  40 CFR Parts 90 and 91.  Will appear
in the Federal Register when adopted.
9. Proposed date of adoption:  To be determined
Proposed date of entry into force:
10. Final date for comments:  5 April 1999
11. Texts available from:  National enquiry point [ X ] or address, e-mail and telefax number of
the other body:  The text is also available on the Internet at:          