Does the Letter of Authorization go inside the sealed “security envelope”?
You must complete both of the letter of authorizations that are included in your passport paperwork. As long as both of them are included in your passport paperwork, that is all that matters for this particular form. Some Acceptance Agents seal both of them, some seal one and leave on outside, and finally some acceptance agents leave both unsealed. For this one form it doesn’t matter as long as both are completed and included in your overnight package.