As of November 10, 2018, all working Crane Operators MUST be certified with an NCCCO certification. A partir de el 10 de Noviembre del 2018, todos los operadores de grúas trabajando tendrán que ser certificados por la NCCCO . For training and exams in Houston, call Travis Moon, a trusted partner: For Reference/Referencia: https://www.osha.gov/news/newsreleases/trade/11092017 http://www.nccco.org/general/oshas-crane-rule