New Jersey Statutes Title 40A. Municipalities and Counties 40A § 9-80

a. in a county in which the office of register of deeds and mortgages initially was established pursuant to P.L.1875, c. CXXXV (c.135), the office of register of deeds and mortgages shall be consolidated with the office of county clerk;

b. in a county of the second class with a population density greater than 4,500 persons per square mile and a population between 490,000 and 505,000 according to the most recent federal decennial census, the office of register of deeds and mortgages shall be consolidated with the office of county clerk upon the expiration of the term of office of the current register of deeds and mortgages or the occurrence of a vacancy prior to the expiration of the term of the current register of deeds and mortgages, whichever occurs first; and

c. in every county other than counties of the first class, the office of register of deeds and mortgages shall be consolidated with the office of county clerk upon the expiration of the term of office of the current register of deeds and mortgages or the occurrence of a vacancy prior to the expiration of the term of the current register of deeds and mortgages, whichever occurs first.

Upon the consolidation of the office of register of deeds and mortgages as provided herein, the office of register of deeds and mortgages in those counties shall be abolished, and the powers, functions, and duties of the register of deeds and mortgages shall pertain to the county clerk.