Are sub-national jurisdictions permitted to have smoke-free laws?
Yes
If yes, are they allowed to be more stringent than national law?
Yes
If yes, do one or more sub-national jurisdictions have smoke-free laws more stringent than national law?
Yes
A brief comment on the extent of sub-national legislation:
The national law does not require 100% smoke free public places and workplaces, but rather, requires designated smoking areas. (Smoking areas, however, can be outside pursuant to government guidelines.) Some local governments have passed legislation requiring designated smoking areas indoors, others have passed legislation requiring 100% smoke free indoor public places and workplaces with smoking areas outside, while many others have not passed any legislation.