Yes, all candidates will be asked to present a valid government-issued photo ID at the start of the exam. The acceptable identification include (but are not limited to):
passport book and card,
driver's license,
National ID card,
Consular ID card,
U.S. Permanent Resident Card (Green Card),
Canadian Permanent Resident Card
State-issued or province-issued ID card
Note that US military IDs, employee IDs and student IDs are not acceptable forms of ID for LSAT Writing.
The name on the ID you used for scanning must match the name you used during LSAT registration for the exam.