15 GCA § 207: Requirements for Holographic Wills; Matters Which May Be Disregarded; Holographic Changes to Holographic Wills.

(a) A holographic will is one that is written, dated and signed by the hand of the testator himself. No formalities are necessary for its making or execution except as set forth in this subsection, and it need not be witnessed.

(b) The following may be disregarded by the Superior Court of Guam if immaterial to the sense and effectiveness of a holographic will which otherwise complies with the requirements of subsection (a) of this Section:

(1) Any matter printed, stamped, or otherwise mechanically or electronically placed upon the document by any person prior to its execution;

(2) Any matter written upon the document by any person other than the testator prior to its execution; and

(3) Any matter added to the document by any person other than the testator after its execution.

(c) A testator who makes and executes a holographic will may thereafter make holographic changes on, or holographic codicils to, such will without the necessity of signing or dating such will at the time such changes or codicils are made; provided, that sufficient evidence, whether intrinsic or extrinsic to such will, exists to show that the testator intended such changes or codicils to be a part of his will.