In the early 1970's, Mrs. Becky Mattson from Lakeside, Montana recognized the importance of good neighbors, and started the effort to make this a National day. With the help of congressman Mike Mansfield, she succeed in getting three presidents (Nixon, Ford, and Carter) to issue proclamations, along with numerous governors.
In 2003, the U.S. Senate passed a resolution, sponsored by Montana Senator Max Baucus, making September 28, National Good Neighbor Day. Previously, this day was celebrated on the fourth Sunday of September.
Note: Rhode Island initiated a movement to pass a National Neighbor Day on the Sunday before Memorial Day. Action never materialized into a formal national proclamation or law.