Environmental monitoring is one of essential procedures in the cycle of the environmental management process. This is because the results from environmental monitoring provide basic information on the status, quality and conditions to enable design of environmental management strategies. However, the environmental monitoring conducted in Indonesia is considered inadequate to identity the occurrence of pollution or deterioration of environmental quality which is tending to increase throughout the country. This is caused by a few environmental laboratories which comply with the requirements to conduct environmental monitoring. Environmental laboratory is the laboratory that has the capability and authority to analyze environmental samples especially chemistry / physic/biology to support environmental management according to environmental laws. Based on the definition, environmental laboratory must be accredited according to ISO/lEC 17025: 2005 and to comply with the supplement requirement Bapedal Decree No. 113: 2000 regarding to general guidance and technical for environmental laboratory. So the environmental laboratory accredited can generate accurate, continuous, and reliable environmental monitoring data which are defensible in terms of environmental regulations and scientific knowledge. As a result, the assurance of high quality environmental data will be a cornerstone for environmental decisions which affect future generation. Keywords:Environmental monitoring, environmentallaboratonJ, accreditation, ISOIlEC 17025: 2005, Bapedal Decree No. 113: 2000. Anwar Hadi;Pusat Sarana Pengendalian Dampak Lingkungan-Kementrian Negara Lingkungan Hidup
