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DOT/FMCSA RIN: 2126-AB61 Publication ID: Fall 2022 
Title: Definition of Tank Vehicle Used for Determining the Commercial Driver's License Endorsement Requirement 

FMCSA revises its definition of a "tank vehicle" under the Commercial Driver's License Standards to clarify which commercial driver's license (CDL) holders who operate such vehicles are required to obtain a tank vehicle endorsement. On May 9, 2011, FMCSA published a final rule on "Commercial Driver's License Testing and Commercial Learner's Permit Standards" that included a new definition of a tank vehicle which had the effect of requiring additional drivers to obtain tank vehicle endorsements on their commercial learner's permits (CLPs) and CDLs. FMCSA received numerous inquiries regarding the new definition and ultimately three petitions for rulemaking. FMCSA granted these petitions and issued a notice of proposed rulemaking (NPRM) on September 26, 2013. This final rule would revise the definition based on the NPRM and the public comments received.

Agency: Department of Transportation(DOT)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Final Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 49 CFR 383   
Legal Authority: Commercial Motor Vehicle Safety Act of 1986    Motor Carrier Act of 1935    Motor Carrier Safety Act of 1984    Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for U    Transportation Equity Act for the 21st Century    49 U.S.C. 31136    49 U.S.C. 31302    49 U.S.C. 31305    49 U.S.C. 31308    49 U.S.C. 31309    49 U.S.C. 31502   
Legal Deadline:  None
Action Date FR Cite
NPRM  09/26/2013  78 FR 59328   
NPRM Comment Period End  11/25/2013 
Final Rule  12/00/2022 
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL:   Public Comment URL:  
RIN Data Printed in the FR: No 
Related RINs: Related to 2126-AB02 
Agency Contact:
Nikki McDavid
Office of Enforcement and Program Delivery
Department of Transportation
Federal Motor Carrier Safety Administration
1200 New Jersey Avenue SE,
Washington, DC 20590
Phone:202 366-0831