noun which may take the genitive case particle 'no', na-adjective, noun
regular; normal; formal; legal; established; legitimate
Describes something that follows official rules, standards, or proper procedures. Often used in formal, legal, and organizational contexts.
Please follow the proper procedures.
He was hired as a regular employee.
This document is not official.
You need to go through the proper procedures to return to your country.
That ticket was obtained through official channels.
He got hired as a regular full-time employee at that company.
She learned on her own without receiving a formal education.
正規 describes regular, official status (e.g. a full-time employee), the opposite of 臨時's temporary or ad-hoc status (e.g. temporary staff).
normalization; standardization
genuine product; officially licensed product; non-counterfeit article