It reviews Atomic Energy Act-1962, Radiation Protection Rules-2004, Regulatory controls for Diagnostic X-ray equipment and Installations, Nuclear medicine Facilities (guidelines for starting Radioisotope laboratory, RIA laboratory), Radiotherapy equipment and installation (Teletherapy and Brachytherapy). It also includes AERB specification for the layout of Teletherapy and Brachytherapy facility, Dose limits, dose philosophy (Justification, Optimization and Dose limits). In the last part it gives the answer for why the public dose limits are less.