Section 3. National Government Projects. – As used in this Act, the term “national government projects” shall refer to all national government infrastructure projects and its public service facilities, engineering works and service contracts, including projects undertaken by government-owned and -controlled corporations, all projects covered by Republic Act No. 6957, as amended by Republic Act No. 7718, otherwise known as the “Build-Operate-and-Transfer Law”, and other related and necessary activities, such as site acquisition, supply or installation of equipment and materials, implementation, construction, completion, operation, maintenance, improvement, repair and rehabilitation, regardless of the source of funding. Subject to the provisions of Republic Act No. 7160, otherwise known as the “Local Government Code of 1991”, local government units (LGUs) may also adopt the provisions of this Act for use in the acquisition of right-of-way for local government infrastructure projects.