California Department of Transportation

Adobe Acrobat Reader is required to view and print PDF files. Adobe Acrobat is required to edit online forms and save them to your computer.

Get Acrobat Reader Image


Last Updated: Monday, December 15, 2014 2:46 PM

Division of Environmental Analysis

What's New

Jump to:

Standard Environmental Reference logo

Standard Environmental Reference

All handbooks, manuals, legal references and guidance related to the preparation of environmental documents and technical reports are found here . . .

Photo of rush hour traffic

Air Quality Issues

CO non-attainment, particulate matter, ozone - the statewide Air Quality Program manages policy and conducts studies . . . more

Photo of Riparian Environment

Biological Resources Issues

Caltrans evaluates the effects of its projects on the natural environment, and conducts research related to fairy shrimp, vernal pools, and the potential aquatic toxicity of asphaltic materials. . . more

Photo of historic Railroad Station

Cultural Resource Studies

Investigations for archaeological, architectural, and historical resources is part of the project delivery process. Learn more, and access our publications, and more . . . more

GIS logo

Environmental GIS Portal

GIS applications alongwith the pdf and video tutorials of the applications can be found here. . . more

EMO logo

Environmental Management Office (EMO)

The Environmental Management Office (EMO) is responsible for developing environmental policy recommendations . . . more

Photo of hazardous waste sampling crew

Hazardous Waste Management

Information for site contractors, who to contact for more information . . . more

Photo of Native American basket

Native American Issues

Caltrans works with Native Americans to ensure that culturally-significant issues are addressed during project delivery. Caltrans also maintains government-to-government relations with tribes . . . more

NEPA Delegation logo

National Environmental Policy Act Assignment

California is now responsible for FHWA's responsibilities under NEPA and other environmental laws for most highway projects in the state. . . more

Photo of Soundwall

Noise and Vibration Studies

Access the Traffic Noise Analysis Protocol and Technical Noise Supplement . . . eight different training modules are available on-line . . . download the Sound32 noise prediction program. . . more

Photo of whale vertebrae

Paleontological Resources Program

DEA's Paleontological Resources Program develops policy and provides technical and statutory information, guidance documents, and specifications to assist the Districts/Regions with the identification, evaluation, and mitigation . . . more

Storm Water Program Logo

StormWater Program

Find out the latest information about Caltrans dynamic and intensive statewide program to prevent stormwater pollution on highways and . . . more

Training on Demand

On-line training on a variety of environmental topics can be found here. . . more