The National Environmental Monitoring Standards (NEMS) are a series of environmental monitoring standards, prepared by the NEMS steering group on authority from the Regional Chief Executive Officers (RCEOs) and the Ministry for the Environment (MfE).

The NEMS initiative is led and supported by the Environmental Data special interest group (formerly known as LAEMG) to assist in ensuring consistency in the application of work practices specific to environmental monitoring and data acquisition throughout New Zealand.