Tag:place=state
 place =
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| Description |
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A large sub-national political/administrative area. 
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| Group: places |
| Used on these elements |
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| Useful combination |
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| See also |
| Status: in use |
| Tools for this tag |
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place= - a high-level sub-national political entity (
Federated state) in several large countries such as USA ("State"), Australia ("State"), Mexico ("State"), Canada ("Province").
May also be applicable in other countries and languages (e.g. "Provincia", "Estado", "Land"). place=province is an alternative option and is currently in use in a few countries - the choice of which to use is at your discretion and that of mappers in your respective country.
How to map
Add the place= to the appropriate the area or node and name it using name=<Name of State>. Place the node on a neutral spot (preferably public land), to prevent drawing attention to private properties or their owners.
If mapping as a node, you might also want to add other useful information such as name in other languages, abbreviation, if any, and what the approximate population is population=*.
If a place node is a 
labelboundary=administrative relation, tag the relation with border_type=state, province, etc. depending on the administrative area's official designation.
Example
place=
name=Ontario
name:en=Province of Ontario
name:fr=Province de Ontario
ref=ON
state_code=ON
population=13425124