In order to ensure the co-operation in case of a pollution incident the Contracting Parties regularly carry out out exercises. The exercises range from "paper" exercises to operational exercises.
Most famous are the BALEX DELTA exercises, which test the procedures documented in the HELCOM Response manual and response capability of the Contracting Parties in case of a major accident and an international response operation.
The general objective of the BALEX DELTA exercises is to ensure that every Contracting Party is able to lead a major response operation.
BALEX DELTA exercises take place each year since late 1980s and are hosted by the Contracting Parties according to a schedule agreed at the HELCOM RESPONSE Group. The results of the exercises are also reported to and discussed at the RESPONSE group.