According to Volcker, the peacekeeping contingent must be deployed throughout the Donbas "to ensure elections".
TASS quotes the statement of the American Special Representative:
The United States believes that to conduct elections in the Donbass, the UN mission should be deployed throughout the region. The United States wants the UN mission’s mandate to be more than defense (OSCE missions). The United States wants the mission area to be throughout the conflict, including on the border with the Russian Federation. However, the placement could begin with the line of demarcation.
According to Volcker, the timing of the possible introduction of the mission of UN peacekeepers in the Donbass has not yet been determined. Kurt Volker also noted that Ukraine should fulfill its obligations under the Minsk agreements.
Adding from Volcker:
Control over the Russian-Ukrainian border must be preceded by political issues. Among the issues are the status of Donbass, as well as the conduct of local elections in the region.
At the same time, the UN emphasizes that there is currently no specific plan for the introduction of peacekeepers in the Donbass.