The continued existence of TAI was questioned in a 2007 letter from the BIPM to the ITU-R which stated, "In the case of a redefinition of UTC without leap seconds, the CCTF would consider discussing the possibility of suppressing TAI, as it would remain parallel to the continuous UTC.
ðə kəntˈɪnjuːd ɛɡzˈɪstəns ʌv tˌiːˌeɪˈaɪ wʌz kwˈɛstʃənd ɪn ɐ tˈuː θˈaʊzənd sˈɛvən lˈɛɾɚ fɹʌmðə bˈɪpəm tə ðɪ ˌaɪtˌiːjˈuːˈɑːɹ wˌɪtʃ stˈeɪɾᵻd, "ɪnðə kˈeɪs əvɚ ɹˌiːdˌɛfɪnˈɪʃən ʌv jˌuːtˌiːsˈiː wɪðˌaʊt lˈiːp sˈɛkəndz, ðə sˌiːsˌiːtˌiːˈɛf wʊd kənsˈɪdɚ dɪskˈʌsɪŋ ðə pˌɑːsəbˈɪlᵻɾi ʌv səpɹˈɛsɪŋ tˌiːˌeɪˈaɪ, æz ɪt wʊd ɹᵻmˈeɪn pˈæɹəlˌɛl tə ðə kəntˈɪnjuːəs jˌuːtˌiːsˈiː.