HJ3 is the composite repair system that uses repair and reinforcement in so many multidisciplinary fields. Pressurized facilities with metal substrates could be repaired while in service without the costly downtime required compared to traditional methods. HJ3 engineered systems that were designed to conform are recognized by ASME PCC-2, ASME B31, and ISO TS24817 standards for nonmetallic reinforcing solutions. Tank repair is recognized by API 653, and concrete is ACI 440.2R. HJ3 only needs 2 layers for the non-leaking case and 4 layers for the leaking case because of the thin layer thickness of 1.3 mm based on ASME PCC-2.