Posted by Dr. Craig Whisler on January 12, 2004 at 16:11:53:
Sometimes they must be notarized, sometimes witnessed and sometimes none of the above or both
Typically, and instrument affecting title to real property, that is recordable, needs to be notarized. In CA the DMV does not require notarization of car titles but AZ does. It depends on the requirements of the law, the governmental agency or non-governmental entity that you are dealing with. You should call your state’s DMV and ask them. There are an infinite number of vairations from state to state.
Typically wills need to be witnesses but not notarized. Again there may be a mulitiude of exceptions. Refer to state law on this too.
A lot of times people, entities, or documents ask for either or both but, it isn’t required by law. Its just their policy.
The only definite answer to your question is that it depends (I think).