You must read and comply with all CMP requirements, some of which your C&R will meet. It really is simple, but you must have your application Notarized every three years. Much simpler than the old DCM days. There is now a page 4 in the application packet which has all the instructions and must be submitted as part of the application. It is available on the CMP website.
CMP is a great resource for surplus American military longarms.