What are the exceptions to the ban on liquids for carry-on luggage?

What are the exceptions to the ban on liquids for carry-on luggage?

The exception that we've put in place with regard to the liquid ban on air travel is that breastfeeding mothers can bring pumped breast milk. However, if the child is not traveling with the mother, it has to fall into the 3-1-1 category: three ounces of fluid in one container, in a zip-top baggie. If the mother is traveling with the child, the mother can bring formula or pumped breast milk to accommodate that child for the entire flight. The other exception that we've made to the 3-1-1 rule is for prescriptions. If passengers need to bring more than three ounces of cough syrup, they need to bring the prescription in the actual container and declare it to our security officers at the airport.