Norwegian citizens planning to work offshore in Brazil must ensure their passports are valid for at least six months beyond their intended stay. Additionally, they must obtain the appropriate visa before traveling. 


For offshore work, this typically involves securing a temporary work visa (VITEM V) or an offshore visa, depending on the nature and duration of the employment. It's essential to apply for the correct visa category at a Brazilian consulate or embassy prior to departure, as working without the proper authorization can lead to fines or deportation. 


Furthermore, travelers should carry all necessary documentation, including proof of employment and any required health certifications, to present upon arrival in Brazil.