Resilient Zero-Emission Transit Bus Fleets: A Guide (2025)

Chapter: Acronyms and Abbreviations

Previous Chapter: References and Bibliography
Suggested Citation: "Acronyms and Abbreviations." National Academies of Sciences, Engineering, and Medicine. 2025. Resilient Zero-Emission Transit Bus Fleets: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29205.

Acronyms and Abbreviations

AC Transit

Alameda-Contra Costa Transit Authority

AI

artificial intelligence

AVTA

Antelope Valley Transit Authority

BEB

battery electric bus

BESS

battery energy storage system

BTMS

battery thermal management system

CNG

compressed natural gas

DOT

department of transportation

EV

electric vehicle

EVSE

electric vehicle supply equipment

FC

fuel cell

FCEB

fuel-cell electric bus

FEMA

Federal Emergency Management Agency

GRC

governance, risk, and compliance

HV

high voltage

HVAC

heating, ventilation, air conditioning

ICE

internal combustion engine

ICEB

internal combustion engine bus

IT

information technology

kW

kilowatt

MTA

Metropolitan Transit Authority

MW

megawatt

NPV

net present value

OEM

original equipment manufacturer

PV

photovoltaic

RAMCAP

Risk Analysis and Management for Critical Asset Protection

SCR

selective catalytic reduction

SLA

Service level agreements

SMRT

Santa Maria Regional Transit

SOC

state of charge

SOP

standard operating procedure

THIRA

Threat and Hazard Identification and Risks Assessments

TRL

technology readiness level

ZE

zero-emission

ZEB

zero-emission bus

Suggested Citation: "Acronyms and Abbreviations." National Academies of Sciences, Engineering, and Medicine. 2025. Resilient Zero-Emission Transit Bus Fleets: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29205.

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Suggested Citation: "Acronyms and Abbreviations." National Academies of Sciences, Engineering, and Medicine. 2025. Resilient Zero-Emission Transit Bus Fleets: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29205.

Abbreviations and acronyms used without definitions in TRB publications:

A4A

Airlines for America

AAAE

American Association of Airport Executives

AASHO

American Association of State Highway Officials

AASHTO

American Association of State Highway and Transportation Officials

ACI–NA

Airports Council International–North America

ACRP

Airport Cooperative Research Program

ADA

Americans with Disabilities Act

APTA

American Public Transportation Association

ASCE

American Society of Civil Engineers

ASME

American Society of Mechanical Engineers

ASTM

American Society for Testing and Materials

ATA

American Trucking Associations

CTAA

Community Transportation Association of America

CTBSSP

Commercial Truck and Bus Safety Synthesis Program

DHS

Department of Homeland Security

DOE

Department of Energy

EPA

Environmental Protection Agency

FAA

Federal Aviation Administration

FAST

Fixing Americaʼs Surface Transportation Act (2015)

FHWA

Federal Highway Administration

FMCSA

Federal Motor Carrier Safety Administration

FRA

Federal Railroad Administration

FTA

Federal Transit Administration

GHSA

Governors Highway Safety Association

HMCRP

Hazardous Materials Cooperative Research Program

IEEE

Institute of Electrical and Electronics Engineers

ISTEA

Intermodal Surface Transportation Efficiency Act of 1991

ITE

Institute of Transportation Engineers

MAP-21

Moving Ahead for Progress in the 21st Century Act (2012)

NASA

National Aeronautics and Space Administration

NASAO

National Association of State Aviation Officials

NCFRP

National Cooperative Freight Research Program

NCHRP

National Cooperative Highway Research Program

NHTSA

National Highway Traffic Safety Administration

NTSB

National Transportation Safety Board

PHMSA

Pipeline and Hazardous Materials Safety Administration

RITA

Research and Innovative Technology Administration

SAE

Society of Automotive Engineers

SAFETEA-LU

Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (2005)

TCRP

Transit Cooperative Research Program

TEA-21

Transportation Equity Act for the 21st Century (1998)

TRB

Transportation Research Board

TSA

Transportation Security Administration

U.S. DOT

United States Department of Transportation

Suggested Citation: "Acronyms and Abbreviations." National Academies of Sciences, Engineering, and Medicine. 2025. Resilient Zero-Emission Transit Bus Fleets: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29205.

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Suggested Citation: "Acronyms and Abbreviations." National Academies of Sciences, Engineering, and Medicine. 2025. Resilient Zero-Emission Transit Bus Fleets: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29205.
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Suggested Citation: "Acronyms and Abbreviations." National Academies of Sciences, Engineering, and Medicine. 2025. Resilient Zero-Emission Transit Bus Fleets: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29205.
Page 94
Suggested Citation: "Acronyms and Abbreviations." National Academies of Sciences, Engineering, and Medicine. 2025. Resilient Zero-Emission Transit Bus Fleets: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29205.
Page 95
Suggested Citation: "Acronyms and Abbreviations." National Academies of Sciences, Engineering, and Medicine. 2025. Resilient Zero-Emission Transit Bus Fleets: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29205.
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