To add on to what Cornelius said (just to be prudent

) if you're asking how you can become an "accredited" PMP certification holder then the answer is that you need to take the PMP exam that PMI offers. One of the eligibility criteria is that you have 35 hours of Project Management education from an accredited provider.
So, if you're looking for the required PM education hours through an accredited course provider this is a great place to get them. If you're looking for the actual PMP certification then you need to take the PMP exam after meeting the prerequisites.
On the actual PMP certification process you can find out more at
www.pmi.org
.