Are knees on the ground illegal in Bellator as well?
Yup, unified rules, all MMA in the USA follows them (but I believe certain states are even more restrictive, ie no blows to the TOP on the head in Florida last I heard).
The only organization with better rules is One FC in Asia.
http://www.onefc.com/about-one/rules.html
Forgot to mention, even with Sheldon Silver gone, the rat NY Assembly “ran out of time” to vote on legalizing MMA.