Apologies for posting a link to the wrong document, however there is a volunteer agreement within the cadet organisation. Subsequent research has shown that this is to be signed by staff and reg CC only and there is NO requirement for normal CC who are not combined CI/CC to sign this.
However all CC members are ( or should be) now loaded onto Bader so I suppose its possible that Wing HQs may not be able to differentiate between those who are registered CI/CC and those who are CC only.