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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 February 3, 11:00 AM ET - February 11, 8:00 PM ET. We apologize for any inconvenience. More details.