Please note: Contents is under revision
General information on the Scandinavian Activity Contest (SAC) can be found on the SAC webpage.
But, what does SAC have to do with NRAU? Well, paragraph 15 in the SAC rules clearly states that:
The Nordic Radio Amateur Union (NRAU) is the organizer of the contest. The member societies of NRAU are EDR (Denmark), FRA (Faroe Islands), IRA (Iceland), NRRL (Norway), SRAL (Finland), and SSA (Sweden).
The contest is administered by a committee composed of one member each from Denmark, Finland, Norway, and Sweden.