During this same period, significant COLUMBIA program facilities projects need to execute to schedule to both deliver SSBN826 and SSBN827 (e.g., completion of isolated SYAB tasks, test and certification of ATLAS floating dry-dock, modification to the north wingwall, construction of additional wet berths) and create capacity for serial production of SSBN828 AFS through construction of a second SYAB, slightly smaller, for ship assembly and test. We are delivering VIRGINIA Class submarines on successively improving spans in the Groton yard and, over the next two years, we will bring the lead COLUMBIA Class submarine (SSBN826) and lead VPM submarine (SSN803) through pressure hull closure, float-off and delivery.