 From 1 April , a new NOK 65 tax was introduced on all domestic flights . Braathens and SAS decided to divide the cross @-@ subsidize the taxes between their routes , something Color Air was not able to do . This was because the tax was only valid for routes within Southern Norway ; Braathens and SAS could therefore tacitly collude to increase the prices to Northern Norway , and thereby subsidize their routes in Southern Norway . Color Air on the other hand would be forced to put the full tax on all its departures . While the government had no way to hinder the incumbents from doing this , Gudmund <unk> , Minister of Finance from the Center Party , encouraged the airlines to not " cheat " , and follow the intentions of the law , even if he admitted that there was nothing the government could do to hinder the airlines from cross @-@ subsidizing . 
