NIST SP 800-88 is a publication from the National Institute of Standards and Technology that provides guidelines for media sanitization. It outlines methods to securely erase data from various types of storage media, ensuring that sensitive information cannot be recovered after disposal or reuse. The document emphasizes the importance of protecting sensitive data and offers best practices for organizations to follow. It covers different sanitization techniques, including data wiping, physical destruction, and degaussing, helping organizations choose the appropriate method based on their specific needs and the type of media involved.