Federal education loans eligible for consolidation include:
Federal Direct loans
Federal Stafford loans
Federal Perkins loans (see note below)
Federal Parent Loans for Undergraduate Students (PLUS)
Federal Consolidation loans (see note below)
Health Professions Student loans
Nursing student loans
Federal insured student loans
Auxiliary Loans to assist students
Federal Supplemental Loans for students (SLS)
National Direct Student Loans (NDSL)
Health Education Assistance Loans (HEAL)
A note about consolidating Perkins loans: a Perkins loan has a fixed low interest rate of 5 percent. Because of its fixed low interest rate and extensive cancelation provisions, it is often advisable NOT to consolidate a Perkins loan. See the Perkins loan section for the list of loan cancelations.
A note about consolidating existing federal consolidation loans: federal consolidation loans may be re-consolidated as long as an additional eligible loan is included in the re-consolidation. The additional loan must not be in repayment to be eligible.