U.S. safety firm withdraws certification for two oil tankers over Iran sanctions

… "Classification societies are faced with the challenge of keeping up with Iran's tactics in order to avoid facing sanctions themselves," Claire Jungman, chief of staff at United Against Nuclear Iran (UANI), said. Classification societies provide services such as checking that ships are seaworthy. UANI, the U.S. group, which monitors Iran-related tanker traffic through ship and satellite tracking, alerted ABS in December to what it said were transfers of Iranian oil involving several vessels, including the Panama-flagged Karo and the Belize-flagged Elsa, correspondence between the two groups seen by Reuters shows.