"I cannot see that there is a collective call from the country's consumers for shops to stay open on Sundays," union leader Trine Lise Sundnes told VG. "Fourteen percent of the so-called consumers work in the trade. I can promise you that most of them do not want to work on Sunday."
Sunday opening is one of a long list of liberalising measures included in the political platform the new government announced on Monday.
Another announced measure, allowing the Segway self-balancing personal transporter, has also run into problems, with Norway's road safety authority already raising objections.