In response to user feedback, ClassNK has significantly simplified the procedures for uploading data such as ship plans to the ClassNK Archive Center (NKAC). The NKAC service was launched in 2016 to help shipowners and shipbuilders comply with IMO goal-based ship construction standards (GBS). Applicable to bulk carriers and oil tankers of 150 meters length and over completed on or after July 1, 2020, the standards require the storage of Ship Construction File (SCF) data onboard the vessel...
https://www.marinelog.com/legal-safety/compliance/classnk-makes-imo-gbs-archiving-more-convenient/