A codicil is a supplement to a previous will that adds to, modifies, amends, or revokes one or more provisions of the earlier will. Laws regarding codicils vary from state to state and in some states a codicil may not replace an earlier will—but in some states it may.
In Nevada, a codicil is a legal instrument that is used to make changes to an existing will. It can add to, modify, amend, or revoke provisions of the will without the need to draft a new will entirely. However, the codicil must comply with the same legal formalities as the original will to be valid. This means it must be in writing, signed by the testator (the person making the will), and witnessed by at least two individuals who were present at the same time and observed the testator sign the codicil or acknowledge the signature or the will. A codicil that meets these requirements can effectively change the terms of the will to which it refers. It's important to note that if a codicil is inconsistent with the original will, the terms of the codicil will typically prevail to the extent of the inconsistency.