AASHTO – American Association of State Highway Transportation Officials

CE – Categorical Exclusions

CSS – Context Sensitive Solutions

DEIS – Draft Environmental Impact Statement

EA – Environmental Assessments

EIS – Environmental Impact Statements

FEIS – Final Environmental Impact Statement

FHWA – Federal Highway Administration

FONSI – Finding of No Significant Impact

HSIP – Highway Safety Improvement Program

IHSDM – Interactive Highway Safety Design Model

MUTCD – Manual on Uniform Traffic Control Devices

NCHRP – National Cooperative Highway Research Program

NEPA – National Environmental Policy Act

PEL – Planning and Environmental Linkages

ROD – Record of Decision

RSA – Road Safety Audits

SAFETEA-LU – Safe, Accountable, Flexible, and Efficient Transportation Equity Act: A Legacy for Users

SHSO – State Highway Safety Office

SHSP – Strategic Highway Safety Plan

TIP – Transportation Improvement Programs