NSLW stands for National School Lunch Week.
National School Lunch Week (NSLW) is an annual observance created to promote the importance of school lunch programs and their contribution to children's health and well-being. It highlights the nutritional value of school lunches and the positive impact they have on students' academic performance and overall development. President John F. Kennedy established NSLW in 1962. The National School Lunch Program (NSLP) itself serves nearly 30 million children every school day.