I have and I understand that a J&A is required if the requirement is limiting full and open competition. There are several shipyards that can perform the work we are requesting. Within the package is about 95 work items and about 20 of those require the services of the OEM, which is one source. Since the requirement is solicited as full and open but, some of the work items require a single source does a J&A need to be executed? I have not found a FAR authority that covers this situation