SCHEDULE – IV
3. Standards for emissions or discharge of environmental pollutants
(1) For the purpose of protecting and improving the quality of the environment and preventing and abating environmental pollution, the standards for emission or discharge of environmental pollutants from the industries, operations or processes shall be as specified in 3[Schedule I to IV].
(2) Notwithstanding anything contained in sub-rule (1),the Central Board or a State Board may specify more stringent standards from those provided in 4[ Schedule I to IV] in respect of any specific industry, operation or process depending upon the quality of the recipient system and after recording reasons therefor in writing.
(3) The standards for emission or discharge of environmental pollutants specified under sub-rule (1) or sub-rule (2) shall be complied with by an industry, operation or process within a period of one year of being so specified.