One question that frequently arises when designing or specifying Fiberglass Reinforced Plastic (FRP) equipment is when a Professional Engineer (P.E.) stamp is required on design drawings and calculation packages.
In industrial processing facilities handling hazardous or high-pressure fluids, state engineering board regulations and building codes often mandate that nonmetallic piping, tanks, and structural supports be designed under the direct supervision of a licensed Professional Engineer.
A P.E. seal verifies that the equipment design complies with applicable standards such as ASME RTP-1, ASME B31.3 Chapter X, and local building codes, providing plant owners with confidence in structural integrity and legal compliance.

