Population and Community Development Association (PDA) is one of Thailand's largest and most diverse NGO. Founded in 1974, it operates from Bangkok and 18 regional development centres and branch offices in rural Thailand. Its programmes are based on a belief that local people are best suited to shape and sustain their own development. PDA started in family planning and has since expanded with programmes in integrated rural development, institution and capacity building, medical and health services, HIV/AIDS prevention and care, income generation, and education.