Today’s technology does not enjoy the freedom it enjoyed in yesteryears. Today technology has to conform to various regulations relating to different aspects of life namely health, environment, society etc. Strict laws are in force to control the detrimental effects of technology. One such law in force in developed countries is the emission regulation created and enforced by Environmental Protection Agencies, which requires the content of harmful gases in emissions to stay within the prescribed limit. In the 1960’s, studies were conducted into sources of air pollution in the United States and automobiles were held responsible for the most significant damage. By late sixties emission regulation wasput into force to control this type of pollution.
