What does EXIT mean on an oversize permit?

Exit. An exit number: Exit 44B toward I-70 EAST is where you leave the highway.

On real permits

PrintedMeansState
Exit 259, RP 258.7The Morrison exit on I-70. The exit number (259) and the reference point (258.7) are not the same number.Colorado
Exit 238B EThe exit ramp at Exit 238B, written in the Route column as if it were a roadGeorgia
exit 87AExit 87A, where the route keeps right onto I-474Illinois
Exit 44B toward I-70 EAST/DAYTONI-465 exit 44B, signed for I-70 east and DaytonIndiana
Las Vegas (Exit 33)The I-15 interchange at Las Vegas where the Friday and Sunday 12-foot width limits start or endNevada
Exit 0 toward I-10 WEST/DemingLeave I-25 at exit 0 and follow the signs for I-10 West toward Deming.New Mexico
US 25 (Exit 54)U.S. Highway 25 at interstate Exit 54North Carolina
Exit 49 toward ALUM CREEK DR/OBETZLeave I-270 at exit 49, signed Alum Creek Dr / Obetz.Ohio
Exit Number 8 on I-91Interstate exit 8, as DMV's rules name interstate exitsVermont

Decode a whole route line