Final answer:
The National School Lunch Program (NSLP) provides financial and community assistance for meal service in public and nonprofit private schools.
Step-by-step explanation:
The financial and community assistance program that provides meal service in public and nonprofit private schools and other specific institutions is the National School Lunch Program (NSLP). This program is administered by the United States Department of Agriculture and aims to ensure that children from low-income families have access to nutritious meals during the school day. Through the NSLP, eligible students receive free or reduced-price lunches based on their family's income level.