Schengen visas for Svalbard itself, but those travelling via mainland Norway require visas to pass through Norway. People without a source of income can be rejected by the governor. No one is required to have a visa or residence permit on Svalbard. Regardless of citizenship, persons can live and work in Svalbard indefinitely. The Svalbard Treaty grants treaty nationals equal right of abode as Norwegian nationals. So far, non-treaty nationals have been admitted visa-free as well. While there is no visa requirement, everyone must meet certain requirements in order to stay in Svalbard. These requirements are governed by a separate policy called “Regulations relating to rejection and expulsion of persons from Svalbard”. Among the requirements is that residents must have the means to be able to reside on Svalbard. These requirements apply to both foreigners and Norwegian citizens, and the Governor of Svalbard may reject persons who do not meet the requirements. Russia retains a consulate in Barentsburg. In September 2010, a treaty was made between Russia and Norway fixing the boundary between the Svalbard archipelago and the Novaya Zemlya archipelago. Increased interest in petroleum exploration in the Arctic raised interest in a resolution of the dispute. The agreement takes into account the relative positions of the archipelagos, rather than being based simply on northward extension of the continental border of Norway and Russia. Economy The three main industries on Svalbard are coal mining, tourism, and research. In 2007, there were 484 people working in the mining sector, 211 people working in the tourism sector, and 111 people working in the education sector. The same year, the mining yielded revenues of 2.008 billion Norwegian kroner (US$227,791,078), tourism 317 million kroner (US$35,967,202), and research 142 million kroner (US$16,098,404). In 2006, the average income for economically active people was 494,700 kroner, 23% higher than on the mainland. Almost all housing is owned by the various employers and institutions and rented to their employees; there are only a few privately owned houses, most of which are recreational cabins. Because of this, it is difficult to live on Svalbard without working for an established institution. Since the resettlement of Svalbard in the early 20th century, coal mining has been the dominant commercial activity. Store Norske Spitsbergen Kulkompani, a subsidiary of the Norwegian Ministry of Trade and Industry, operates Svea Nord in Sveagruva and Mine 7 in Longyearbyen. The former produced 3.4 million tonnes in