Hi, CLE= Certified Lactation Educator PC= Peer Counselor (as in the WIC {Women, Infants and Children} Program) PC's are peers who have been trained in basic breastfeeding (BF) knowledge and talk to other WIC moms about BF and encourage them to BF and help out with basic problems of BF. Hope this helps! I know that sometimes the abbreviations are kida like a crytogram!! :) TAke care! Jay