Mariners who desire to send correspondence or applications to a Regional Examination Center, should use the correct address (available here) and ensure that a return address is shown on the envelope. Incorrectly addressed mail will result in delays in processing.
We highly recommended that you use Pay.Gov - Credit Card Payment Form in order to pay for your Duplicate credential. It is fast, safe, and reliable method of payment. See Title 46 CFR 10.110 for additional user fees.
If sending original or certified copies of documents, it is recommended that you use certified mail or another mail service that provides tracking capabilities. Originals will be returned to you after verification.