Signage

Permission to put up signage or advertising.

Code
sign
Full identifier (IRI)
https://schema.govfresh.com/v1/permittype/sign
Part of
Permit type
JSON file
/v1/codelists/permit-type.json
Profile
permits

A document only ever uses the short code above (sign). The full identifier is just its complete, globally unique form, so any system reading it knows exactly which term is meant.