Table 4 Results of the evaluation of the policy documents (n = 50)

Policy documents with mandatory character, %

24

Policy documents having direct influence on companies, %

24

Policy documents having indirect influence on companies, %

26

Policy documents having no influence on companies, %

50

Specific targets/goals included, %

72

Targets/goals measurable, %

50

Sustainability requirements included, % (see Fig. 2 for more details)

56

Sustainability assessment/certification explicitly mentioned, %

72

Direct links to certification, %

44

Suitability of certification as instrument for implementation of the policy, %

76