A manual for the inspection of vehicles in Texas, to see if they meet the state government standards for emissions and safety. [PDF]

Young scholars develop an understanding of visible air pollutants with an incomplete combustion demonstration, a "smog in a jar" demonstration, building simple particulate matter collectors, and exploration of engineering roles related...

What is an HEV and how can they help the environment? Follow this WebQuest and you will be able to answer those questions and more.

Outlines Texas emissions standards for light-duty, medium-duty, and heavy-duty vehicles. Includes downloadable reference chart of emissions standards.

A resource site for information on rules and regulations around vehicle safety inspection and emissions testing in Texas. Contains links to forms and requirements, what to do if your vehicle fails a test, and what the inspection and test...

Young scholars take a closer look at cars and learn about some characteristics that affect their energy efficiency, including rolling resistance and the aerodynamics of shape and size. They come to see how vehicles are one example of a...

This site highlights new legislation in California which is designed to create new regulations that will reduce greenhouse gas emissions produced by cars and trucks. The background to this proposal gives a summary of the manner in which...

Trace the advance of the environmental movement from 1948 through the 1980s. Read about the legislation promoting a healthy environment passed under both Democratic and Republican presidents.