Norwegian national road

17,200 kilometers (10,700 mi) of national roads were transferred along with an annual compensation of 6.9 billion NOK for maintenance.

National roads are selected by the criteria of being important for long-distance travel.

The "gravel roads package" was a governmental plan which ensured that all national roads without special importance in the National Protection Plan for Roads, Bridges, and Road-Related Cultural Heritage (Nasjonal verneplan for veger, bruer og vegrelaterte kulturminner) received asphalt covering.

The last two remaining kilometers were asphalted on 17 December 2003, with participation by Minister of Transport and Communications Torild Skogsholm, among others.

The main roads in Østfold were numbered 1–9 based on an older local system.