North Korean leader Kim Jong-un promised that he would shut down the country's nuclear test site next month and invite outside experts and journalists to witness its dismantling.
North Korea has conducted all six of its nuclear tests in Punggye-ri in the northeast since 2006. The sixth and most recent test was carried out last September.
In late April, Pyongyang announced that it would disband the site because it has already completed nuclear development.
On another note, it appears North Korea will move forward with Kim Jong-un's promise to change the North's time zone to match the South.
Moon and Kim held the third-ever inter-Korean summit at the border truce village of Panmunjom.
They reaffirmed their shared goal of complete denuclearization of the Korean Peninsula.
They also agreed to work toward a formal end of the Korean War within this year, to halt all hostile acts and to push for a series of inter-Korean cooperation projects.