When did Republic Act 6138 come into effect?

The correct date for the enactment of Republic Act 6138 is June 28, 1974. This law is significant as it amends Republic Act 5527, which governs the practice of medical technology in the Philippines. Understanding the timeline of these laws is essential for anyone studying the legal framework of medical technology in the country, as it reflects the evolution of the professional regulations and standards for medical technologists.

The other dates mentioned do not correspond to the enactment of Republic Act 6138, and familiarity with these key dates assists in recognizing the chronological development of healthcare laws during that period in the Philippines.