Stricter PM Limits for Improved Air Quality
In Stage V regulations, the European Commission is determined to enhance air quality within the EU by implementing more stringent particulate matter (PM) limits. These limits, indicated in red, aim to promote the adoption of Best Available Technology (BAT) solutions, specifically the utilization of wall-flow diesel particulate filters (DPF).
Engine manufacturers universally agree that the incorporation of DPFs is essential to meet the requirements of Stage V regulations. As a result, the regulations allow no flexibility and only offer pre-buy options. This means that engines compliant with the previous stage (Stage IV) must be installed in machinery within one year after the introduction of Stage V. Additionally, machinery equipped with these engines must be placed on the market within 18 months of Stage V implementation.
Introduction of In-Service Monitoring (ISM)
Stage V introduces a new requirement called In-Service Monitoring (ISM). This entails the monitoring of engine performance and compliance. The results obtained from ISM must be reported and published on an official European Commission database. ISM does not impose specific limits; its primary purpose is to assess and ensure engine performance and compliance.
Stage IV Engines’ Assumed Compliance with Stage V
It is worth noting that current Stage IV-compliant engines, except for the D11 engine, already integrate DPF solutions. Based on this, it is assumed that these engines will also meet the requirements specified in the EU Stage V regulations.