The PRC was created under which PD and amended by which PD?

The Professional Regulation Commission (PRC) in the Philippines was established under Presidential Decree No. 223, and it was later amended by Presidential Decree No. 657. This sequence reflects the legal and administrative processes involved in the creation and subsequent modification of government institutions and their regulations.

Presidential Decree No. 223 was enacted in 1973, laying down the framework for the PRC's operations, including its mission to regulate the practice of various professions in the country, ensuring that standards are met and maintained for professional conduct. The amendment under Presidential Decree No. 657, issued in 1977, included changes and enhancements to the original provisions, allowing for greater clarity and efficiency in the commission's functions.

Selecting the correct answer provides a foundation for understanding the legislative history surrounding professional regulation in the Philippines, which is important for anyone studying engineering economics and management, as it illustrates the intersection of policy and regulatory considerations in professional environments.