Which entity remains the technical authority for methods to maintain accountability of government property?

The correct choice is NAVSUP, which stands for the Naval Supply Systems Command. NAVSUP is the technical authority responsible for establishing and overseeing the procedures and policies for maintaining accountability of government property within the Navy. This encompases the development of logistics and supply chain processes that ensure proper tracking, usage, and reporting of government assets.

NAVSUP's role is crucial because it sets the standards and provides guidance that ensures compliance with regulations related to property management. This includes defining how property should be recorded, maintained, and reported, which is essential for accountability and transparency within the Navy’s supply chain operations. The structure and processes designed by NAVSUP help to prevent loss and ensure proper stewardship of government resources.

While the Department of Defense (DoD) does have overarching policies, and the U.S. Navy and Fleet Command have their respective operational roles, NAVSUP specifically focuses on supply chain management and accountability of property within the Navy. This unique designation makes NAVSUP the correct answer, as it is dedicated to ensuring that all methods for maintaining accountability are effective and in accordance with Navy standards.