2013SL 200-2013 Coding rules and codes for government administration information of water resources
1997SL/T 200-1997 The government administration information codes and coding regulation for the water departments(1)
SL/T 200-1997 The government administration information codes and coding regulation for the water departments(1) was changed to SL 200-2013 Coding rules and codes for government administration information of water resources.