noun
examination fee; certification fee
Fee paid to take a test or certification exam, such as a proficiency test or license exam.
日本語能力試験の検定料はいくらですか。
How much is the examination fee for the Japanese Language Proficiency Test?
受験料 is a more general term for any examination fee, while 検定料 often implies a certification or proficiency test.
Compound of 検定 (kentei, 'certification, examination') and 料 (ryō, 'fee').