core + auto (Auto Extension): terms relating to automobiles.

occupationalCategory

Defined in the pending.schema.org extension.
Canonical URL: http://schema.org/occupationalCategory

Thing > Property > occupationalCategory

Category or categories describing the job. Use BLS O*NET-SOC taxonomy: http://www.onetcenter.org/taxonomy.html. Ideally includes textual label and formal code, with the property repeated for each applicable value.

Usage: Between 1000 and 10,000 domains
Values expected to be one of these types
Text
Used on these types
JobPosting
Occupation

Source

https://github.com/schemaorg/schemaorg/issues/1698

Schema Version 3.3