When submitting industrial plant plans for approval, whose seal must be stamped on all pages?

• A. The engineer's professional dry seal
• B. The Board's official seal
• C. The PRC seal
• D. The CHED seal

Answer: (A)

The key idea is that plans submitted for approval must carry the engineer’s professional seal on every page. That seal shows the drawings were prepared under a licensed professional engineer who takes responsibility for their accuracy and compliance with applicable codes. It provides a clear link to the individual engineer who can be held accountable, which is essential for regulatory review and safety standards. Without that seal, there is no verified professional ownership of the design.

Other seals don’t serve this purpose: a board’s official seal is not typically stamped on engineering drawings themselves; a PRC seal is for licensure verification, not for certifying the technical content of each page; and a CHED seal relates to education credentials, not the engineering plans.