Effective March 1, 2011, the Postal Service™ suspended mail service to Libya. Until further notice, all Post Office™ and other acceptance locations must not accept any mail destined to the country of Libya. The temporary suspension effects Global Express Guaranteed® (GXG®), Express Mail International®, Priority Mail International®, First-Class Mail International®, International Priority Airmail™ (IPA®), International Surface Air Lift® (ISAL®), and M-Bag items.
For already deposited items addressed to Libya (but not including items already at an International Service Center), Postal Service employees must endorse them “Mail Service Temporarily Suspended — Return to Sender” and then place them in the mailstream for return. Items already at an International Service Center may be returned or held for dispatch once service is restored in accordance with USPS® policy.
For all returned GXG items, Express Mail International items, or any other item bearing a customs declaration form, upon request, the Postal Service will refund postage and fees on mail returned due to the suspension of service.
For all other returned items not bearing a customs declarations form, upon request, the Postal Service will refund postage and fees on mail returned due to the suspension of service, or the sender may remail them with the existing postage once service to Libya has been restored. When remailing under this option, customers must cross out the marking “Mail Service Temporarily Suspended — Return to Sender”.
— Mailing Standards,
Pricing, 00-00-00