Which TYCOM oversees the Naval Expeditionary Coastal Force (NECF)?

The Naval Expeditionary Coastal Force (NECF) is overseen by the Naval Expeditionary Combat Command (NECC). This command was specifically established to oversee and provide support for various naval expeditionary forces, focusing on operations carried out in coastal areas. The NECC integrates various maritime capabilities and ensures that the NECF is effectively trained and equipped to handle its missions, which can include coastal and riverine operations, port security, and other maritime security tasks. This command is vital for maintaining naval readiness and operational effectiveness in littoral zones, where traditional naval operations may be challenged.

Understanding the roles of the other commands can provide additional context: NAVSEA focuses on shipbuilding and maintenance, NAVCENT operates in the Central Command area but does not directly manage expeditionary forces, and the term NAVY is too broad and general to pinpoint the specific oversight of the NECF. The NECC's direct relationship with the NECF makes it the correct answer.