The Environment Protection Act was introduced in 1986 after the Bhopal gas tragedy. The Act provides for the protection and improvement of the environment by establishing authorities to regulate environmental pollution. It defines environment pollution and hazardous substances. The Act establishes Central and State Pollution Control Boards to regulate pollution. It empowers the Central Government to establish environmental laboratories and enforce standards and rules regarding pollution. Offences under the Act are punishable with fines and imprisonment, and special provisions are included to assign liability to companies and government departments for offences committed.