These rules were adopted at an EGM in March 2018 and amend the previous rules. They are designed to meet the General Data Protecton requirement. (A further small amendment was made at the 2019 Annual General Meeting.)

They are available as a Web page at Society Rules
They are posted here in docx format for Word:
OMS RULES 23 March 2018 (DOCX)
and in PDF format for users with other software:
OMS RULES 23 March 2018 (PDF)