Civil Code (Cap. 16), article 669

669. (1) Where a person who is totally deaf, but can read, desires to make a public will, he shall read such will himself in the presence of the notary and the witnesses, and the notary shall, before the will is signed by himself and the witnesses, enter, at the foot of the will, a declaration to the effect that the will has been so read by the testator. (2) Where, however, such deaf person cannot read, he himself shall declare his will in the presence of the notary and the witnesses, and the notary shall , before the will is signed by h imself and the witnesses, enter, at the foot of the will, a declaratio n to the effect that the will is in accordance with the will as declared by the testator. Persons incompetent as witnesses in public wills.