Does the board have power over those who have no certificate but practice the profession of aeronautical engineering?

The correct understanding is that the board indeed has authority over individuals who practice aeronautical engineering without holding the necessary certification. This authority is grounded in the regulatory framework that governs professional practice in aeronautical engineering. The board is responsible for ensuring that practitioners meet defined standards of competence and ethics to protect public safety and welfare. Therefore, any individual engaging in professional activities related to aeronautical engineering must be certified; otherwise, they are subject to the board's enforcement actions, which can include penalties or prohibitions against practice.

The other options may present scenarios that could mislead someone. For instance, suggesting that the board does not have power could imply a lack of regulation in the field, which is inaccurate given the importance of certification in ensuring expertise in such a critical area. The idea that it is not defined in PD 1570 overlooks the established authority of the board in enforcing professional standards. Also, the notion of power being contingent upon holding a CAAP license would be too narrow, as the board's scope goes beyond just specific licenses, extending to overall professional certification requirements.