54:4-17.  Oath;  form and content
The oath which the assessor shall administer to persons examined under section 54:4-16 of this title, shall be of the following or like tenor:

"I, , do swear (or affirm) that I will truly answer all questions put to me regarding my taxable property and I will speak the truth, the whole truth and nothing but the truth."

The powers conferred by this section and said section 54:4-16 upon assessors  are also hereby vested in the county boards of taxation and the state board of  tax appeals, or other reviewing authority, in the exercise of their duties.
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