The former routing of NY 3 between Deferiet and Carthage was originally designated as NY 3F; however, it was redesignated as NY 3G by the following year. NY 3 was moved back to the Deferiet–Carthage–Fargo alignment  while the NY 3G designation was transferred to the former routing of NY 3 between Deferiet and Fargo.
The previous route of NY 3 between Deferiet and Carthage was initially designated as NY 3F; subsequently, it was renumbered as NY 3G in the following year. NY 3 was returned to its original alignment with Deferiet, Carthage, and Fargo, while the NY 3G designation was reallocated to the former route of NY 3 between Deferiet and Fargo.