SEAL LDO designator is a technical manager and applies to officers qualifying through formal training and practical experience in duty involving diving, parachuting, and demolition of explosives in the conduct of Naval Special Warfare Operations. Plans and conducts naval special warfare in and from a riverine, lacustrine or maritime environment. Performs duties in consonance with the missions of all Naval Special Warfare commands as specified in appropriate Naval War Publications. Performs airborne, diving and demolition operations. An officer of the Naval Reserve.