This year BLS is having families submit absence, early dismissal, and late arrival notes using an online google form. Here is the link. It is located at bls.org under the Families tab.

docs.google.com/forms/d/e/1FAIpQLSdhcTWU5DOp32CFagaQMOQkwcY3r1haTQ4teQb7Pqj3ocP80w/viewform