Final answer:
Schools in the National School Breakfast Program must provide at least 1/4 RDA for the specified age/grade group for breakfast as per the USDA School Meals Initiative for Healthy Children.
Step-by-step explanation:
The USDA School Meals Initiative for Healthy Children stipulates that schools participating in the National School Breakfast Program must provide at least 1/4 RDA (Recommended Dietary Allowances) for the age/grade group for breakfast. This is aimed to ensure that children receive a portion of their daily nutritional needs to support health and learning. Schools are responsible for offering meals that help meet these RDA requirements.