<Li> CRZ - 1: these are ecologically sensitive areas these are essential in maintaining the ecosystem of the coast . They lie between low and high tide line . Exploration of natural gas and extraction of salt are permitted </Li> <Li> CRZ - 2: these areas form up to the shoreline of the coast . Unauthorised structures are not allowed to construct in this zone . </Li> <Li> CRZ - 3: rural and urban localities which fall outside the 1 and 2 . Only certain activities related to agriculture even some public facilities are allowed in this zone </Li> <Li> CRZ - 4: this lies in the aquatic area up to territorial limits . Fishing and allied activities are permitted in this zone . Solid waste should be let off in this zone . </Li>

Coastal regulation zone notification issued by central government