There are no official certifications for Maya besides the Autodesk Certified Trainer. Beware of other places that offer certification, as more than likely, they will not be recognized by anyone. However, the ACT is less a certification of aptitude, but more of teaching.
I'm signing up for the ACT Certification. Hopefully they have one in my area, else it's off to Siggraph!
Originally posted by effacer
i wonder if they certify you online.
No they do not, as one of the requirements to get the certification is to teach two units to the class.
Imagination is more important than knowledge.