æɾə mˈɪnɪməm, ðə fɹˈæntʃaɪz ˈɑːpɚɹˌeɪɾɚ mˈʌst jˈuːz ðə sˈɪɾi sˈaɪtsiːɪŋ ɹˈɛd bˈeɪs kˈʌlɚ ænd ɡɹɐfˈiːɾi stˈaɪl.
At a minimum, the franchise operator must use the City Sightseeing red base colour and graffiti style.