5.1 Legislation
5.1.1 International level
5.1.2 National level
5.1.3 Sub-national level
5.1.4 Scale unspecified
5.2 Policies and regulations
5.3 Private sector standards & codes
5.4 Compliance and enforcement
5.4.1 International level
5.4.2 National level
5.4.3 Sub-national level
5.4.4 Scale unspecified