A-Rank is one of the six classifications. It is preceded by B-Rank and followed by S-Rank. It is typically used when classifying techniques intended for arunin and jonin levels. A-Rank techniques are often very useful, but need extensive training before they can be mastered. Some A-Rank techniques also pose a risk to the user, resulting in their classification as kinjutsu.
There are also A-Rank missions. These missions relate to what is in a village or country's personal interests and are extremely difficult or dangerous to compete, usually assigned to arunin and jonin. A-Rank missions pay between 150,000 and 1,000,000 ryo.