I looked at their rulebook but and re read the equipment part. But I am still not 100 percent sure .
First of all Welcome
Not sure why you would want a knee wrap for deadlifting. Maybe a sleeve like a rehband if your knees are dodgy but thats about it.
I believe they are, I remember reading the same question on the EFS QnA a while back, theres also a video recently of stan efferding pulling 815lbs whilst using them with some mark bell commentary and he says they are. I believe he is also a chairman of the SPF somewhere so it seems so!
Check out my training:
My smolov blog '12 : start 475 - finish: 520
Thanks for the welcome, I should have introduced myself. My name is navid, I am 14 years old and going into my first meet. The goal for my meet is to total 900 pounds with knee wraps. Meet goals are 400 dead, 300 squat, 200 bench, but i have already hit my squat goal, so that will pickup some slack from my horrible bench.
Anyway the reason I would want knee wraps, is because I pull ultra wide sumo, and it is closer to a squat than a conventional deadlift, and knee wraps couldn't hurt if I tried them on during deadlifts, but if they weren't allowed then there would be no point in trying them for deadlift.