Judo (柔道, jūdō?), meaning “gentle way”, is a modern Japanese martial art (gendai budō) and combat sport, that originated in Japan in the late nineteenth century. Its most prominent feature is its competitive element, where the object is to either throw one’s opponent to the ground, immobilize or otherwise subdue one’s opponent with a grappling manoeuvre, or force an opponent to submit by joint locking the elbow or by executing a choke. Strikes and thrusts (by hands and feet) — as well as weapons defences — are a part of judo, but only in pre-arranged forms (kata) and are not allowed in judo competition or free practice (randori).

All the grading requirements and necessary information can be found in this PDF:
Grading Info

Temporary Judo Membership Form

Junior Judo Membership Form

Intermediate Judo Membership Form

Senior Judo Membership Form