For both the 10 and 18 month programs, you will earn 2 certifications. One from One World Center that certifies you as a Development Instructor and one from Humana People to People certifying your volunteer work during the service period abroad.
If you choose the 18 month program, you get an extra certificate from One World University in Mozambique awarding you with 62 academic credits for the studies you have done during the program.
These certificates will add a lot of value and experience to your professional resume.