scope:

This CEN Workshop Agreement (CWA) provides a guideline for the verification of air emission abatement technologies and it specifies a reporting structure for a verified vendor claim for the performance of a specific air emission abatement technology. The technology can comprise hardware (devices, apparatus and tools), software (e.g. for process control and improvement) and physical, chemical and biotechnological processes with their adaptation to site-specific conditions. Following this CWA gives a report for a verified product. This report provides standardized key information about an air emission abatement technology when applied. The report aims to illustrate the technology's performance and can be used to help all stakeholders (e.g. expert, regulator, administrator, potential customer) for decision making, i. e. to evaluate if a particular technology is suitable for the specific pollutant(s) and conditions for the application that is under consideration. The CWA provides substantial input to a future European ETV system. The CWA gives guidance on technology verification on a voluntary basis to bridge the time until a European ETV system is established.