This International Standard addresses — fundamental requirements for planning and execution of environmental performance evaluations for biometric systems based on scenario and operational test methodologies, — specifications to define, establish, and measure specific conditions to assess, including requirements for equipment, — requirements for establishing a baseline performance in order to compare the influence of environmental parameters, — a specification of the biometric evaluation including requirements for test population, test protocols, data to record, and test results, and — procedures for carrying out the overall evaluation. This International Standard does not — determine which parameters should be analysed for a specific biometric modality (This is currently covered in ISO/IEC/TR 19795-3.), — specify requirements to perform a vulnerability analysis modifying environmental factors (This is covered by ISO/IEC 19792.), — classify biometric systems upon performance against different environmental conditions, or — specify requirements for determining the functional effects of environmental conditions on hardware components (such as corrosion, electrical interference, breakage, etc.) of biometric systems.