With two former Sambo champions, Fedor Emelianenko and Andrei Arlovski, fighting on the Affliction:Banned card (three if Aleksander Emelianenko were still on the card), I was wondering about sambo rules and found this list from this page. Not sure what body sanctions these rules and it appears the sanctioning body split at the tail end of the Cold War. An excerpt:

The rules for combat sambo are basically the same as sport sambo; though striking is permitted while standing, no points are awarded for the strikes. There is no striking permitted on the ground.

In sport Sambo a uniform jacket (kurtka) is worn with shorts. The Kurtka is similar to a Judo Gi and includes slots for the belt and amulets on the shoulders. Additionally sambo shoes must be worn (similar to wrestling shoes, but sole consists of smooth suede rather than rubber traction material) I have attached pictures of the various uniform components. Competitors who lack a component can purchase what is needed at the event. Additional equipment required for combat sambo matches include; headgear, hand and foot protection and a mouthpiece. Uniform as outlined above is required as well.

Scoring: A clean throw, or one in which the “thrower” remains standing and the person being thrown lands completely on their back results in immediate victory. A submission, such as an arm or straight leg lock, which causes an opponent to “tap out, or submit”, will also result in victory.

There are no ground positional points awarded in sambo. Points are only accumulated by executing throws and the number of points awarded is based on the positioning of both the person executing the technique and the landing position of the person being thrown. In cases of a tie either a sudden death round may be implemented or superiority may be granted upon the sole discretion of the head judge.

There is a 12 point superiority ruling in that once there is a 12 point difference between the opponents’ scores, the match is over. There are 2 points awarded for each ten second pin (hold down) with a maximum allowable of 4 hold down points during one match.

Elimination methodology is determined by the amount of competitors in a particular division. Smaller divisions may utilize a round robin format, as opposed to single or double elimination.

Unlike Jui [sic] Jutsu there is a limited amount of time for ground work and if submission is not obtained quickly, the opponents are stood up, makes for exciting matches! In each ring there is a head judge, timekeeper, center referee and two corner judges.

Adult matches are 6 minutes in length.

I like how submission must be quick and there is some striking allowed, but can’t tell what the role of striking is if there are no points awarded for strikes. Anyway, this format seems like a great sparring format for recreational students.