The purpose of this legislation, known as the "Candis King Hope for Sickle Cell Families Act," is to improve the understanding and management of sickle cell disease in the United States. It aims to establish a program for collecting important data about the disease, which affects many individuals and families. The key provisions of this act include the creation of a Sickle Cell Data Collection program managed by the Secretary of Health and Human Services. This program will involve granting funds to states to gather and maintain data on sickle cell disease.