Justervesenet (JV) is a governmental agency under the Ministry of Trade, Industry and Fisheries. JV is responsible for the Norwegian metrology infrastructure and for ensuring its national and international acceptance.

JVs tasks and responsibilities are based in the “Law on measurement units, measuring and standard time” (in Norwegian, lov om målenheter, måling og normaltid).

Justervesenet has the national responsibility in two main areas:
• Legal metrology
• National measurement standards