The objective of this Safety Report is to complement IAEA Safety Guide RS-G-1.8 and to provide the methodological and technical details of the design and operation of monitoring programmes for different radionuclides, environmental media and types of facility. It also covers general issues of emergency monitoring during and in the aftermath of an accidental release of radionuclides and gives an outline of dose assessment procedures based on monitoring data and the reporting of information to the regulatory body.