It's been some time since most of the island was declared a "Compulsory Registration" area. It's an improved method of tracking titles and a good move overall.
If your property is on Ambergris Caye you may have already taken title under this system and have no need to change anything.
If on the other hand your property was not part of the registration area in 2005 (depends on where your parcel is), you will need to go through the first registration process. It takes a bit of time to do this but it is neither complex nor expensive.
Suggest that you contact a qualified paralegal or attorney, send along a scan of your title document and let them inform you as to whether the existing document is already updated. If it is not, then hire them and get it done.

You cannot transfer title to the property to another party without having the updated title document so it is of some importance to get the registration done.

For those who wish to be informed of new laws in Belize as they are passed you can subscribe to a government gazette - it's a lot of reading but you can certainly keep informed that way. If your interest is primarily about your property and not a host of other legal items, then probably an annual call to your realtor would be sufficient to keep you abreast of items of interest related to your parcel of land.