pˈɛn dˌiːˌoʊtˈiː ɹᵻplˈeɪst sˈaɪnɪdʒ ɔnðə nˈɔːɹθbaʊnd lˈeɪnz ʌv aɪ ˈeɪɾi wˈʌn ˌɔn sɛptˈɛmbɚ twˈɛnti nˈaɪn, tˈuː θˈaʊzənd twˈɛnti wˈʌn, ænd ɹᵻplˈeɪst sˈaɪnɪdʒ ɔnðə sˈaʊθbaʊnd lˈeɪnz ʌv aɪ ˈeɪɾi wˈʌn ɔnðə fˈɑːloʊɪŋ dˈeɪ.
PennDOT replaced signage on the northbound lanes of I-81 on September 29, 2021, and replaced signage on the southbound lanes of I-81 on the following day.