The United States Coast Guard (USCG) has published its Annual Port State Control (PSC) Report and Annual Class Performance List for the year 2013.
http://www.uscg.mil/hq/cgcvc/cvc2/annual_report/annualrpt13.pdf
INSB Class is listed within the best-performing group of class societies, with a detention ratio of 0%. In a total of 36 vessel examinations (distinct arrivals) there was no any determination of class responsibility detention, to an I.N.S.B. classed vessel.
Since the year 2006, I.N.S.B. Class maintains the status of a Coast Guard approved Classification Society (under the requirements of 46 U.S.C. 3316 (c) (2) ) enabling the society to review, examine, survey, or certify the construction, repair, or alteration of a vessel in the United States. INSB Classed fleet operates on same basis with IACS classed fleet within the U.S waters.
http://www.uscg.mil/hq/cgcvc/cvc2/policy/safpolicy/society_approvals.asp
International Naval Surveys Bureau (INSB Class) is an independent Greek ship classification society working with the objective of safeguarding life, property and the marine environment. Headquartered in Piraeus, authorized by 24 Flag States and accredited as an impartial third party certification organization, I.N.S.B. Class belongs to the cluster of the leading Non-IACS societies with truly international presence in more than 60 countries.
