47 CFR § 13.17 - Replacement license.
(a) Each licensee or permittee whose original document is lost, mutilated, or destroyed may request a replacement. The application must be accompanied by the required fee and submitted to the address specified in part 1 of the rules.
(b) Each application for a replacement General Radiotelephone Operator License, Marine Radio Operator Permit, First Class Radiotelegraph Operator's Certificate, Second Class Radiotelegraph Operator's Certificate, Third Class Radiotelegraph Operator's Certificate, Radiotelegraph Operator Certificate, GMDSS Radio Operator's License, Restricted GMDSS Radio Operator's License, GMDSS Radio Maintainer's License, or GMDSS Radio Operator/Maintainer License must be made on FCC Form 605 and must include a written explanation as to the circumstances involved in the loss, mutilation, or destruction of the original document.
(c) Each application for a replacement Restricted Radiotelephone Operator Permit or Restricted Radiotelephone Operator Permit-Limited Use must be on FCC Form 605.
(d) A licensee who has made application for a replacement license may exhibit a copy of the application submitted to the FCC or a photocopy of the license in lieu of the original document.