N.J. Stat. § 3B:3-4
Any will executed on or after September 1, 1978 may be simultaneously executed, attested, and made self-proved, by acknowledgment thereof by the testator and affidavits of the witnesses, each made before an officer authorized pursuant to R.S. 46:14-6.1 to take acknowledgments and proofs of instruments entitled to be recorded under the laws of this State, in substantially the following form:
I, .........., the testator, sign my name to this instrument this .... day of ......., 20..., and being duly sworn, do hereby declare to the undersigned authority that I sign and execute this instrument as my last will and that I sign it willingly (or willingly direct another to sign for me), that I execute it as my free and voluntary act for the purposes therein expressed, and that I am 18 years of age or older, of sound mind, and under no constraint or undue influence.
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Testator
We,............., the witnesses, sign our names to this instrument, and, being duly sworn, do hereby declare to the undersigned authority that the testator signs and executes this instrument as the testator's last will and that the testator signs it willingly (or willingly directs another to sign for him), and that each of us, in the presence and hearing of the testator, hereby signs this will as witness to the testator's signing, and that to the best of our knowledge the testator is 18 years of age or older, of sound mind, and under no constraint or undue influence.
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Witness
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Witness
The State of................
County of...................
Subscribed, sworn to and acknowledged before me by ................, the testator and subscribed and sworn to before me by ............ and ............., witnesses, this ............. day of.................
(Signed).............................
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(Official capacity of officer)
N.J.S. § 3B:3-4