Del. Code Ann. tit. 12, § 255
The authorized person shall attach to the will a certificate to be signed by the authorized person establishing that the requirements of this subchapter for valid execution of an international will have been fulfilled. The authorized person shall keep a copy of the certificate and deliver another to the testator. The certificate must be substantially in the following form:
CERTIFICATE
I, ________________________________ (name, address and capacity), a person authorized to act in connection with international wills, certify that on ________________________________ (date) at ________________________________ (place) (testator) ________________________________________________________________ (name, address, date and place of birth) in my presence and that of the witness (a) ________________________________ (name, address, date and place of birth) and (b) ________________________________________________________________ (name, address, date and place of birth)
has declared that the attached document is his or her will and that he or she knows the contents thereof.
I furthermore certify that:
(a) In my presence and in that of the witnesses:
________________
PLACE OF EXECUTION
________________________________________________________________ DATE
________
________________________________________________________________ SIGNATURE and, if necessary, SEAL
* to be completed if appropriate