After evaluating sustainability performance, the locations are provided with a catalog of concrete measures featuring best-practice examples, which allow them to systematically improve their sustainability performance. Coverage rate for EMAS certification in %1) 98.6 98.1 98.1 Coverage rate for ISO 14001 certification in %1) 99.5 98.8 98.7 Coverage rate for ISO 50001 certification1) 99.3 98.0 97.9 Production sites with an environmental management system 1) Relating to employees on the production sites. 1) Relating to employees on the production sites.