Promoting the airline's ISO certification. ISO 14000 is a family of standards related to environmental management that exists to (mainly) help organizations minimize how their operations negatively affect the environment.
Although it was a Sweden-based operator, Britannia Nordic was a partner of Finnish tour operator Finnmatkat and this 757 wore appropriate titles, a nod to its Helsinki operations. Finnmatkat is the company would later be nenamed TUI Finland. The special titles were removed when the airline was rebranded TUIfly Nordic.
In late 2004 Britannia Airways AB/Britannia Nordic - while still trading simply as Britannia (yet with swedish-registered planes) - started flying partly with the titles of the tour operators it was flying for. Fritidsresor is the Swedish one which was at the origin of the split of the scheduled and charter operations of Transwede in 1996, the charter part trading under the Transwede Leisure name, which in turn quickly became Blue Scandinavia (the predecessor of Britannia Sweden), a period from which it still retains its 'Bluescan' radio callsign.
StarTour is the Norwegian tour operator which also became part of the TUI Group in the early 2000s; the airline is indeed also flying from Norway as well as Finland. The side on which the titles were applied varied as well; it is indicated here with the 'port side|starboard side' pattern, with FR for Fritidsresor and ST for StarTour.