This document discusses lessons learned from state CHIP programs regarding affordability and outlines approaches to defining affordability. It notes that when formerly free coverage costs as little as 1-5% of income, enrollment decreases significantly. The document then outlines current CHIP and ACA income eligibility thresholds and cost-sharing limits. It recommends that policies be flexible, consider the ramifications of cost increases, be consumer-focused, align across programs, and be results-driven.