ðə lˈɪvɚɹi, fˈɜːst ˌɪntɹədˈuːst ɪn mˈeɪ tˈuː θˈaʊzənd wˈʌn tə pɹəmˈoʊt lˈɛvəl kɹˈɔsɪŋ sˈeɪfti tə ɹᵻplˈeɪs ðə kˈɑːɾoʊ blˈuː lˈɪvɚɹi ænd wʌz ɪnˈɪʃəli tɹˈaɪəld ˌɔn tɹˈænts ɹˈeɪl lˌoʊkəmˈoʊɾɪv dˌiːsˈiː fˈoːɹ θˈaʊzənd θɹˈiːhˈʌndɹɪd twˈɛnti θɹˈiː, ænd ˌoʊvɚ tˈaɪm wʌz ɐplˈaɪd tə nˈuːmɚɹəs ˈʌðɚ lˌoʊkəmˈoʊɾɪv klˈæsᵻz ˌʌp ʌntˈɪl fˈaɪv mˈeɪ tˈuː θˈaʊzənd fˈoːɹ, wˌɛn tˈoʊl ɹˈeɪl tˈʊk ˌoʊvɚ ðə ɹˈeɪl sˈɪstəm, ænd ˌɪntɹədˈuːst ðə kˈɔːɹŋkˈɑːb lˈɪvɚɹi.
The livery, first introduced in May 2001 to promote level crossing safety to replace the Cato Blue livery and was initially trialed on Tranz Rail locomotive DC 4323, and over time was applied to numerous other locomotive classes up until 5 May 2004, when Toll Rail took over the rail system, and introduced the Corn-Cob livery.