Mezue ahịrịokwu na-esonụ: Mgbe ọ nọ na Parsons, Chalhoub duziri kọmitii na-ekewapụ ntọala na Structural Engineers Association of California (SEAOC) wee mepụta koodu imepụta dị mfe na imepụta seismic site na iji ihe nkedo ihe nkedo nke e webatara na nke mbụ na Uniform Building Code na 1990. Ụkpụrụ koodu ndị e mere ka ha dị mfe na-enyere ndị injinia nọ n'ụwa nile aka ịmụta na itinye echiche injinịa n'ọrụ ha kwa ụbọchị, na-enye atụmatụ dị irè, ma na-enweghị ibu arọ nke ime nchọpụta ndị dị mgbagwoju anya. Dị ka onye so na Federal Emergency Management Agency, na dị ka onye na-arụ ọrụ na Civil Engineer (P.E.) na Structural Engineer (S.E.) na steeti California, ọ rụrụ ọrụ dị ka onye isi injinia na ọrụ enyemaka ọdachi na Loma Prieta ala ọma jijiji, ala ọma jijiji Landers, na
Ala ọma jijiji nke Northridge, nnukwu ọdachi atọ ndị na-egbu ndị mmadụ na ọtụtụ ijeri dollar n'ihe onwunwe na mmebi ụlọ ọrụ ọha na eze.