NR606 Common Structural Rules for Bulk Carriers and Oil Tankers

On December 14, 2005, the Common Structural Rules for Double Hull Oil Tankers (CSR-OT) and Common Structural Rules for Bulk Carriers (CSR-BC) were unanimously adopted by the IACS Council for implementation on April 1st, 2006. 
These two sets of Rules were developed independently and in order to remove variations and achieve consistency, IACS decided to harmonize these Rules. There is now a single set of Rules "Common Structural Rules for Bulk Carriers and Oil Tankers" (CSR BC & OT) comprised of two parts:
-Part 1 gives requirements common to both Bulk Carriers and Double Hull Oil Tankers
-Part 2 provides additional specialized requirements specific to either Bulk Carriers or Double Hull Oil Tankers.
Current issue of the Common Structural Rules for Bulk Carriers and Oil Tankers consists of the following documents:

Reference Title Edition

NR606 R05

Common structural rules for bulk carriers and oil tankers

Jan 2021

Note: Full revision history for CSR BC & OT is available on IACS website, including all previous rule change Notice and associated technical backgrounds.

Check related documents:
  • NR467 Rules for the classification of steel ships

Check other Bureau Veritas rules and guidelines.