professional certification; trade certification
Refers to an officially recognized qualification or license for a profession or trade, often obtained through examination or training.
This job requires a professional certification.
He obtained a trade certification as an electrician.
資格 is a general term for any qualification or eligibility, while 認定資格 specifically means an officially accredited or certified qualification.
免許 is a license or permit, often issued by a government authority (e.g., driver's license), whereas 認定資格 is typically a certification from a professional body.
Compound of 認定 (にんてい, 'recognition, accreditation') and 資格 (しかく, 'qualification').