Customer Service Center

Excluding Federal Holidays, the Customer Service Center (CSC) is open Monday - Friday from 8 AM to 4:30 PM EST. Except on Thursday the CSC will be closed from 1 PM to 2 PM.

Address: 100 Forbes Dr Martinsburg, WV 25404.
Fax: 1-304-433-3416

Preferred method of contact is our online chatting system during operational hours. Users can print or email a transcript of their chat session.

Online Chatting Service

The NMC utilizes an online chatting system to improve communication with our customers.  If you would like to communicate with us using this method please select the "Live Chat" button located on the left side of this page. During regular CSC hours the Live Chat feature is available for use. Through this you will be provided with real-time answers to your questions. When the CSC is closed our ticket system will be available. You will submit your question and a CSC professional will be in contact via e-mail within 1-2 business days.

Applications must be submitted through your local Regional Exam Center.  Do not send them to the NMC as this WILL cause delays.

Customer Service Center Closures


Reminder on Thursdays from 1 pm to 2 pm EST CSC  agents are in Training.

During this time the phones and Live Chat are not available!

Please note the following exceptions to normal business hours (Monday–Friday,  8:00 AM–4:30 PM) for the National Maritime Center (NMC) Customer Service Center (CSC):

  • Monday, January 17, 2022 – Closed in observance of Martin Luther King Jr. Day.
  • Monday, February 21, 2022 – Closed in observance of Washington’s Birthday.
  • Monday, May 30, 2022 – Closed in observance of Memorial Day.
  • Monday, June 20, 2022 – Closed in observance of Juneteenth National Independence Day.
  • Monday, July 4, 2022 – Closed in observance of Independence Day.
  • Monday, September 5, 2022 – Closed in observance of Labor Day.
  • Monday, October 10, 2022 – Closed in observance of Columbus Day.
  • Friday, November 11, 2022 – Closed in observance of Veterans Day.
  • Wednesday, November 23, 2022 – Open from 8:00 AM to 12:00 PM EST
  • Thursday, November 24, 2022 – Closed in observance of Thanksgiving Day.
  • Friday, November 25, 2022 – Open from 8:00 AM to 4:00 PM EST
  • Friday, December 23, 2022 – Open from 8:00 AM to 12:00 PM EST
  • Monday, December 26, 2022 – Closed in observance of Christmas Day.
  • Friday, December 30, 2022 – Open from 8:00 AM to 12:00 PM EST
  • Monday, January 2, 2023 – Closed in observance of New Years Day.

*This holiday is designated as "Washington’s Birthday" in section 6103(a) of title 5 of the United States Code, which is the law that specifies holidays for Federal employees. Though other institutions such as state and local governments and private businesses may use other names, it is our policy to always refer to holidays by the names designated in the law. **July 4, 2020 (the legal public holiday for Independence Day), falls on a Sunday. For most Federal employees, Monday, July 5, will be treated as a holiday for pay and leave purposes. (See 5 U.S.C. 6103(b).)