Tenn. Code § 5-2-118
The boundary line between Shelby County and Fayette County shall be revised so that the new boundary line is established as follows:
Starting at 881979.25, 339362.988 using state plane coordinate system feet to the north ROW line of U.S. Route 64 and also being the Shelby/Fayette Census County line used during the 2020 decennial census, then continuing to follow the north ROW line of U.S. Route 64 to 882208.999, 339462.774 being the southeast corner of the city of Arlington boundary and the north ROW of Braggs Drive. 882446.823, 347518.595 to 882678.993, 347556.253 north to 882999.026, 352890.871 being the north line of Donaldson Drive, then 883069.42, 352904.659 to 883088.68, 353336.334 to 882946.247, 353335.427 north to 883405.242, 359782.405 west 883159.589, 359801.227 north 883187.697, 360769.797 to 883183.462, 361179.937 then with a line identified as "county line" in the Fayette County parcel data 883494.906, 361324.25 then with a line identified as "county line" in the Fayette County parcel data 883199.561, 361485.534 then with a line identified as "county line" in the Fayette County parcel data 884030.465, 361643.962 then with a line identified as "county line" in the Fayette County parcel data 883502.208, 362294.051 northerly 883570.648, 362509.372, to 883621.035, 362788.147 then to the south ROW line of I-40 883683.362, 363764.332 to 884088.462, 368912.876 to 884122.047, 369526.035 to south side of ROW 884183.894, 370489.372 crossing ROW 884184.303, 370519.051 to 884139.163, 371413.127 to 884117.892, 372149.138 to 884020.079, 374931.699 crossing railroad 884161.515, 378467.292 to north line of the city of Arlington boundary then southwesterly to 884078.532, 378415.714 being the Shelby/Fayette Census County line used during the 2020 decennial census.
T.C.A. § 5-2-118