From 1st October 2018, it is no longer possible to submit information about your chemicals on paper.
Since 2015, the Norwegian Environment Agency has provided an electronic solution for submitting chemical information to the product register.
The intention was that the electronic solution gradually replace the old solution, where chemical information was submitted on paper. During the transition period, it has been possible to declare chemicals both electronically, and on paper.
A change in the national declaration regulation, which entered into force from 1st October 2018, made electronic chemical declaration mandatory. All obligations related to declaration of chemicals are otherwise unchanged.
You find more information on chemical declaration here.