What does STATE LINE mean on an oversize permit?

State line. Where the route enters or leaves the state: GA STATE LINE is the Georgia border.

Also printed as ST LINE, LINE.

On real permits

PrintedMeansState
GA STATE LINEThe Georgia-Alabama state lineAlabama
MS STATE LINEThe Mississippi-Alabama state lineAlabama
NV LINE 80The Nevada state line on I-80, where the California route endsCalifornia
PA/DE LINEThe Pennsylvania-Delaware state line, entering Delaware from PennsylvaniaDelaware
I-75 - AT GEORGIA LINEInterstate 75 at the Georgia state line, where the Florida route endsFlorida
US-54 @ TEXAS State LineWhere US-54 crosses into Texas, the end of this routeOklahoma

Decode a whole route line