The Peace Corps uses acronyms incessantly.  Here are a bunch for quick reference:

APCD:  Associate Peace Corps Director

CED:  Community Economic Development

CD:  Country Director

COS:  Close of Service

DABA:  Developing Agriculture (and environmental) Business Activities

EMA:  Europe/Mediterranean/Asia Region

ET:  Early Termination

HCN:  Host Country National

IAP:  Inter-America/Pacific Region

IST:  In-Service Training

NCE:  Noncompetitive Eligibility

NGO:  Nongovernmental Organization

PC:  Peace Corps

PCMO:  Peace Corps Medical Officer

PCT:  Peace Corps Trainee

PCV:  Peace Corps Volunteer

PCVL:  Peace Corps Volunteer Leader

PIP:  Performance Improvement Plan

RPCV:  Returned Peace Corps Volunteer

SSA:  Sub-Saharan Africa Region

TEFL:  Teaching English as a Foreign Language

TOT:  Training of Trainers