The Pennsylvania Oath of Subscribing Witness (Executed Before Register of Wills) is a sworn statement that is made by a witness to a document before a Register of Wills in order to testify to the validity of the document. The witness must swear that the document was executed properly and that the information contained in it is true. The witness must also provide their name, address, and date of birth. There are two types of Pennsylvania Oath of Subscribing Witness (Executed Before Register of Wills): an individual oath and a joint oath. An individual oath is taken by one witness who swears to the truthfulness of the document. A joint oath is taken by two witnesses who both swear to the truthfulness of the document. Both types of oaths must be witnessed by a Register of Wills and properly notarized. The Pennsylvania Oath of Subscribing Witness (Executed Before Register of Wills) serves as legal proof of the validity of a document and is a necessary step in the process of executing a document in Pennsylvania.