State-Specific Laws: Each state in the US has its own specific requirements for self-proving affidavits. While the Uniform Probate Code (UPC) serves as a model, not all states have adopted it, and many states require specific statutory language in the affidavit.

Witness Requirements: Legal requirements regarding the number of witnesses (typically two) and the proper execution of witnessing procedures for the self-proving affidavit.

Notarization Requirements: Legal requirements for proper notarization of the self-proving affidavit, including the physical presence of all parties during signing and specific notarial acts.

State Probate Codes: The specific probate codes of the relevant state that govern the creation, execution, and validity of self-proving affidavits.

State Notary Laws: State-specific laws governing notarial acts, including requirements for proper notarization of testamentary documents and affidavits.

Execution Requirements: Specific requirements for proper execution of the affidavit, including the order of signing, presence of all parties, and proper dating of the document.

Witness Declarations: Required statutory declarations that must be made by witnesses in the affidavit, attesting to the testator's capacity and voluntary execution of the will.

Local Probate Court Requirements: Any additional or specific requirements imposed by the local probate court regarding the format, content, or execution of self-proving affidavits.