G/TBT/N/USA/1188/Add.3  
 
5 May 2022  
(22-3531) Page: 1/2 
Committee on Technical Barriers to Trade  Original: English  
 
NOTIFICATION  
Addendum  
The following communication , dated  5 May 2022, is being circulated at the request of the delegation 
of the United States of America . 
 
_______________  
 
 
Title:  Federal Motor Vehicle Safety Standards; Federal Motor Carrier Safety Regulations; Parts and 
Accessories Necessary for Safe Operation; Speed Limiting Devices  
 
Reason for Addendum:  
[ ] Comment period changed - date:   
[ ] Notified measure adopted - date:  
[ ] Notified measure published - date:  
[ ] Notified measure enters into force - date:  
[ ] Text of final measure available from1:  
[ ] Notified measure withdrawn or revoked - date:  
Relevant symbol if measure re -notified:   
[X] Content or scope of notified measure changed  and text available from1:  
https://www.govinfo.gov/content/pkg/FR -2022-05-04/html/2022 -09443.htm  
https://www.govinfo.gov/content/pkg/FR -2022-05-04/pdf/2022 -09443.pdf  
https://members.wto.org/crnattachments/2022/TBT/USA/modification/22_3257_00_e.
pdf 
New deadline for comments (if applicable):  3 June 2022  
[ ] Interpretive guidance issued and text available from1:  
[ ] Other:  
 
Description:  TITLE: Parts and Accessories Necessary for Safe Operations; Speed Limiting Devices  
AGENCY: Federal Motor Carrier Safety Administration (FMCSA), Department of Transportation (DOT)  
ACTION: Advance notice of supplemental proposed rulemaking  
SUMMARY: FMCSA announces its intent to proceed with a speed limiter rulemaking by pr eparing a 
supplemental notice of proposed rulemaking (SNPRM) to follow up on the National Highway Traffic 
Safety Administration's (NHTSA) and FMCSA's jointly issued 7 Sep tember 2016 notice of proposed 
rulemaking (NPRM)  on this subject. The SNPRM will propose that motor carriers operating 
commercial motor vehicles (CMVs) in interstate commerce with a gross vehicle weight rating (GVWR) 
or gross vehicle weight (GVW) of 11,794  kilograms or more (26,001 pounds or more), whichever is 
 
1 This information can be provided by including a website address, a pdf attachment, or other 
information on where the text of the final /modified  measure and/or interpretive guidance can be obtained.  G/TBT/N/USA/1188/Add.3  
 
- 2 - 
 
  greater, that are equipped with an electronic engine control unit (ECU) capable of governing the 
maximum speed be required to limit the CMV to a speed to be determined by the rulemaking and to 
mainta in that ECU setting for the service life of the vehicle. With this notice of intent, FMCSA requests 
public comments and data regarding the adjustment or reprogramming of ECUs.  
DATES: Comments must be received on or before 3 June 2022.  
This advance notice o f supplemental proposed rulemaking is identified by Docket Number FMCSA -
2022-0004. The Docket Folder is available from Regulations.gov at 
https://www.regulations.gov/docket/FMCSA -2022-0004/document  and provides access to primary 
documents as well as comments received. Documents are also accessible from Regulations.gov  by 
searching the Docket Number. WTO Members and their stakeholders are asked to submit comments 
to the USA TBT Enquiry Point  by or before 4pm Eastern Time  on 3 June 2022. Comments received 
by the USA TBT Enquiry Point from WTO Members and their stakeholders will be shared with the 
regulator and will also be submitted to t he Docket  on Regulations.gov if received within the comment 
period.  
Previous actions notified under the symbol G/TBT/N/USA/1188  are identified by Docket Numbers 
NHTSA -2016-0087 and FMCSA -2014-0083. The Docket Folders are available from Regulations.gov 
at https://www.regulations.gov/docket/NHTSA -2016-0087/document  and 
https://www.regulations.gov/docket/FMCSA -2014-0083/document  and provide access to primary 
and supporting documents as well as comments received. Documents are also accessible from 
Regulations.gov by searching the Docket Number.  
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