The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.
The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.
Please note: Due to scheduled maintenance, many NCEI systems will be unavailable from 07/15/2025 at 5pm EST until approximately 11:30am EST on 07/16/2025. We apologize for any inconvenience.