2020-7-1 · iii) Siting criteria for crusher shall be as per circular no. PCB/TAC/St.Cr /65/2005 dated 17-10-2007 1. There should be a minimum clear distance of 200 m from the centre of the proposed crusher unit to the periphery of the structure of any residence, public building or place of worship. Exception is allowed for store room and office room. 2.