The ministerial meetings take place in camera in general every four years, circumstances and urgency however being able to justify the special convocation of the group apart from the regular meetings.

Each State is represented in those meetings either by the minister(s) interested by the subject or by the minister charged by his government with coordinating the action of ministries concerned with natural and technological risks hazards problems. For each State, a Permanent Correspondent is named who, in personal connection with the minister(s) taking part in the Ministerial Meetings, is in charge of preparing the meetings of the group; this Permanent Correspondent can be assisted by experts.

13 th Session / Portugal / 26/10/2016

12th Session  / St Petersburg / 28/09/2010

11th Session / Marrakech / 30/10/2006

10th Session / San Marino / 12/12/2003

9th Session / Bandol / 3-4/10/2002

8th Session / Vougliameni / 21-22/2/2000

7th Session / Monte Carlo / 24-25/11/1997

6th Session / Brussels / 6/10/1994

5th Session / Moscow / 1-2/10/1993

4th Session / San Marino / 23-24/10/1992

3rd Session / Ankara / 9-10/9/1991

2nd Session / La Valetta / 10-11/10/1989

1st Session / Athens / 22-23/2/1987

Visual EUR-OPA Major Hazards