Take I-40/US-64 West to 1-440 and take exit 293 for US-1 South toward Sanford. Keeping left at the fork, follow signs for U.S. 1 S/US-64 W/Apex/Sanford/Asheboro and merge onto U.S. 1 S/US-64 West. Keep right to continue on Exit 101A, follow signs for Walnut St./Shopping Centers. Use the left lane to keep left at the fork and continue toward Walnut St. Turn left onto Walnut Street. Turn left into Barnes & Noble Plaza, CEI Labs will be straight ahead.
From NC-147 South, take exit 5A on the left to merge onto I-4o East toward RDU Airport. Then, take exit 291 toward Cary. Turn Right onto Cary Towne Blvd. Turn left onto Walnut Street and take the next left to turn into Barnes & Noble Plaza. CEI Labs will be straight ahead.