Firstright aspires to ensure freedom from discrimination for breastfeeding mothers and their children. Firstright works collaboratively with other organizations to protect, promote and support breastfeeding as the cultural norm. Http://www.firstright.org/
Breastfeeding in public IS legal in the United States, though sometimes people simply don’t know it and therefore might complain about it. This means you can nurse your baby anywhere that you are allowed to be with the baby.
Mothers should be able to feed their babies as needed, without concern for discrimination. The comfort zone that mothers have for breastfeeding visibility varies dramatically. Classically the longer a mother breastfeeds, the greater comfort they have with public nursing.
As a breastfeeding mother, if you encounter discrimination, you can report it at Report Breastfeeding Discrimination
Check out this Applebees discrimination event.