duty, regardless of the type of orders. For subsequent awards, the criteria of award for reservists are the same as the active duty members criteria. In 1999, a directive of the Chief of Naval Operations permitted those personnel stationed on overseas homeported naval vessels to receive the Navy and Marine Corps Overseas Service Ribbon. Prior to this time, such personnel were only eligible to receive the Sea Service Deployment Ribbon. Current regulations now permit the receipt of both ribbons for the same tour of duty. Additional awards of the Navy and Marine Corps Overseas Service Ribbon are denoted by service stars. The Sea Service Deployment Ribbon (SSDR) and Navy and Marine Corps Overseas Service Ribbon (OSR) will be awarded to IAs deploying to Afghanistan (OEF) and Iraq (OIF) in accordance with SECNAVINST 1650.1H. However, the OEF and OIF AOEs may be qualifying areas for either ribbon, depending upon the circumstances of the individual. The following amplifying guidance is provided. The 12-month accumulated sea duty requirement for the SSDR is waived for OEF (11 Sep 1 – TBD) and OIF (19 Mar 2003 – TBD) to qualify for the initial award of the ribbon only. The 12-month requirement still applies for second and subsequent awards. Individuals with subsequent deployments to the OEF or OIF AOEs may elect to use that deployment time towards qualifying for EITHER a subsequent SSDR or the OSR. The member must elect in writing which ribbon the subsequent deployment time will be credited towards, and may NOT divide the deployment time between the two ribbons. The entire deployment time will be credited towards ONE of the ribbons. Air Force and Space Force The Air and Space Overseas Service Ribbon (ASOR) was approved in 1980 by order of General Lew Allen, Air Force Chief of Staff. The award is issued in two grades, being that of "short tour" and "long tour." On 16 November 2020, the Air Force Overseas Service Ribbon was renamed to the Air and Space Overseas Service Ribbon by the Secretary of the Air Force. The Air and Space Overseas Short Tour Service Ribbon is awarded for less than two years of duty or as directed by Department of the Air Force policies. Normally, the Short Tour Service Ribbon is awarded for a permanent duty assignment of at least 300 days within an 18-month time span; such assignments are generally served unaccompanied by family members,