Hello It is allowed to using speedbreaker in challenge series IL ?

Ok.I wanted just to make it sure

How about this run ? http://www.speedrun.com/run/7z0vwr9y he uses speedbreaker at 29:51 and 30:11.

How about this ? http://www.speedrun.com/run/zgnk6x0y he used speedbreaker multiple times 1:15 1:27 1:30