Just thought I would pop in to offer some support for CG66 and answer any questions you have.
A couple of points from posts above - if you have a CG66 you will get a reminder after approx 2 years to update your details, again after 5 years you will get a final reminder. If the record hasn't been updated it will drop from view in the system.
The CG66 database can be viewed from any Coastguard station (MRCC), but will be administered by the one you submitted it with - and so follows that is where you will receive your 2 and 5 year reminder from.
I know some people have had problems attaching their photos to their CG66, so if you are stuck please feel free to email it to me and I will attach it for you, likewise with any help you need with your CG66.
National CG66 Liaison Officer