As specified in Clause 7 of the
Environmental Conservation Rules, all new industries and projects must
apply for an Environmental Clearance certificate. Industries are
classified according to their potential impact on the environment
into four categories - Green, Orange - A, Orange -
Green industries are automatically granted a clearance certificate.
Orange categories must submit considerable further information and
plans, and may be subject to field inspection. The highly polluting
categories Orange-B and Red, must in addition conduct a detailed
Environmental Impact Assessment and prepare environmental management
plans satisfactory to the Department.
Details can be found in the Rules. Schedule 1 of the Rules provides
the Category classification of most common industries.