Eligibility was limited to children up to age 4 and excluded non-breastfeeding postpartum women. By the end of 1974, WIC was operating in 45 states. On October 7, 1975, WIC was established as a permanent program (P.L. 94-105). Eligibility was extended to non-breastfeeding women (up to 6 months postpartum) and children up to 5 years of age.