A PMI REP or Registered Education provider is an organization that has undergone a stringent review of the quality of training delivery by PMI and has been recognized by PMI to assign pre-approved professional development units or PDUs to PMP credential holders. You should attend training programs at PMI R.E.P.s as this assures you of the quality of the training delivery and gives you a learning experience that is in line with the coverage of the actual PMP exam. Please note that GreyCampus is a global REP of PMI with the PMI REP ID as 3871.