Division 2.6 Testing scheme United Kingdom Original text. Later amendments are not shown. The manufacturer shall choose one of the following testing schemes for in-service monitoring: 2.6.1Testing scheme based on the Emission Durability Period (EDP) 2.6.2Testing scheme based on a 4 years' period 2.6.3Division 2.6.3 2.6.4Division 2.6.4 ← Division 2.5 Division 2.6 Division 2.6.1 →