To attain these goals, the emphasis of legislation has been changed from 

 water quality standards to effluent limitations. The new approach uses efflu- 

 ent limitations as a basis to eliminate pollution by 1985. Water quality 

 standards also are established in the new act. States such as Florida may set 

 up their own water quality standards based on the Federal Class I through 

 Class V classification system. 



The 1972 amendments require that all publicly owned sewage treatment 

 plants provide a minimum of secondary treatment by 1 July 1977 and advanced 

 waste treatment by 1 July 1978. The amendments also require that industrial 

 discharge should meet the best practical technology requirements by 1 July 

 1977 and the best available technology by 1 July 1983. EPA has extended the 

 deadlines to 1 July 1983 for compliance with requirements for publicly owned 

 sewage treatment works as described below: 



Type pollutant 

 Conventional 



Toxic 



Nonconventional 



Level of technology 



Best conventional 

 pollution control 

 technology 



Best available 

 technology economi- 

 cally achievable 



Best available technology 

 economically achievable. 



Legislative deadline 

 1 July 1984 



1 July 1984 for 

 existing toxic pollu- 

 tants; 1 to 3 years 

 after determination of 

 new toxic pollutants 



3 years after effluent 

 limits are established 

 but no later than 

 1 July 1984 and never 

 later than 1 July 1987. 



Ocean Dumping Act 



This act forms congressional policy to regulate the dumping of all types 

 of materials into those waters lying seaward of the base line from which the 

 territorial sea is measured. The act is particularly concerned with the dump- 

 ing of materials that would adversely affect human welfare and the marine 

 environment. 



Clean Air Act of 1963 



The Clean Air Act revises existing air pollution laws in an attempt to 

 strengthen basic authority as well as the role of the Department of Health and 

 Human Services regarding air pollution. 



Clean Air Act Amendments of 1970 



This act is a reflection of the Federal Government's recognition of air 

 quality as a national problem and its implicit acceptance of primary responsi- 

 bility for air pollution control. These amendments provide for advanced air 



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