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?
No
A brief comment on the extent of sub-national legislation:
Sub-national jurisdictions have the authority to adopt laws that ban tobacco smoking in any or all of the places; however, no sub-national laws have been adopted.
