The rules will remain inviolate for a period of three years after adoption. A subsequent amendment can be made if approved by 2/3 majority of Executive Council in operation during a term, and ratified by the general body (of minimum quorum, as specified under Article IV) by a similar majority. Copies of each proposed amendment shall have been circulated (under certificate of posting or registered post) to all life members at least four weeks in advance of the Annual General Meeting at which the final decision is to be taken. An amendment once effected will again remain inviolate for a period of three years.