The RCP 1 and associated Technical Background document (TB) are available via the following links:
– RCP 1 (third item on the following web page):
https://iacs.org.uk/publications/common-structural-rules/csr-for-bulk-carriers-and-oil-tankers/
– Technical Background document (third item on the following web page):
https://iacs.org.uk/publications/common-structural-rules/technical-background-documents-for-csr/