Security Levels
National Maritime Center (NMC)
Providing Credentials to Mariners
MMC/TWIC Implementation Updates -
April 7
NMC Call Center: 1-888-IASKNMC (1-888-427-5662) email click here (IASKNMC)
![](https://webarchive.library.unt.edu/eot2008/20090513122940im_/http://www.uscg.mil/nmc/images/getacro.gif)
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