N.J. Stat. § 32:1-138

Nothing herein contained shall be construed to affect, diminish or impair the rights and obligations created by, or to repeal any of the provisions of, chapter three hundred and fifty-two of the Laws of New Jersey of one thousand nine hundred and twenty and chapter two hundred and sixty-two of the Laws of New Jersey of one thousand and nine hundred and twenty-four. If, however, any loss shall be suffered by or accrue to the said sinking fund, and if, after the making of the payment by the port authority to the state of New Jersey as hereinbefore provided, the moneys in the said sinking fund shall at any time be or become less than an amount equal to the principal amount of the then currently outstanding New Jersey Camden bridge-Holland tunnel bonds, or if the income and interest currently received from or currently accruing upon the moneys in the said sinking fund shall be or become insufficient to pay the interest currently accruing upon or currently payable in connection with the aforesaid New Jersey Camden bridge-Holland tunnel bonds, the state of New Jersey represents and agrees that it will make good such deficits out of sources other than revenues from the said Holland tunnel. The said payment by the port authority to the state of New Jersey constitutes repayment for all moneys contributed by the said state toward the cost of construction of the said Holland tunnel, including the moneys diverted and appropriated by chapter three hundred and nineteen of the Laws of New Jersey of one thousand nine hundred and twenty-six and chapter fifty-eight of the Laws of New Jersey of one thousand nine hundred and twenty-seven from the road fund, created by chapter fifteen of the Laws of New Jersey of one thousand nine hundred and seventeen. The requirement of chapter fifty-eight of the Laws of New Jersey of one thousand nine hundred and twenty-seven that the said moneys diverted and appropriated by the said statutes of the state of New Jersey shall be returned and credited to the said road fund, with interest, shall be and shall be deemed to be satisfied and discharged so far as it relates to the revenues arising from the operation of the said Holland tunnel. The provisions of this section shall constitute a covenant and agreement by the state of New Jersey with the state of New York, the port authority and the holders of any bonds or other obligations of the port authority, as security for which the tolls and revenues of said Holland tunnel may be pledged. L.1931, c. 4, s. 21, p. 28.