Many people need to use Boverket's Building Regulations.
BBR, Boverket's Building regulations is available in English. This version, BBR 23, is not the latest version. The latest version is BBR 24 and is only available in Swedish. The English interpretation in only for informative purpose. It is the Swedish version of the latest BBR that is legally binding.
The regulation text itself is available under Publications, follow the link in "Related information"