Sector groups and branch committeesSectoral operations are of major importance in the operations of the Centre for Occupational Safety. Our services are designed largely in sectoral working groups – sector groups and branch committees. There are four sector groups: the Industrial Group, the Service Group, the Municipal Group and the Transport and Logistics Group. The Industrial Group and the Transport and Logistics Group also have 20 branch-specific committees. There is also one specialist group: Working Life Experts on Substance Abuse.