Engineer's notebook requirements?

I’ve heard that the engineer’s notebook has to be in a bound notebook, or that they have to be handwritten on paper, and not three hole binders with printed typed entries this year. Is this true? (Sorry if I missed a rule or something)

Vex wants bound notebooks so there is extra points awarded for bound notebooks like what come with the welcome kits. There is no rule that you have to though. Here are some resources. The first is the rubric the second and third are forum posts about it.