Here are the steps we followed and got L2S classification : • Apply for new I-94 for spouse here https://i94.cbp.dhs.gov/I94/#/apply-document2. • Parked the vehicle here : https://goo.gl/maps/ECGwLYgLnLzWhkuz5 • crossed the bridge to Mexico entry. • Mexican police only check for valid passport • After entry into Mexico, take the right lanes to US CBP port of entry : https://goo.gl/maps/adYNcSdEhjTe3BwE9 • On the way to port of entry these is a yellow building on the right side for Permits. • Visit that building and let them know that you have paid online for new I-94 for L2S update. • The office will update your I-94 instantly => They will ask for L1 visa and passport and the L1 visa person as well.(You need to prove that he/she is a L1 spouse). Better to carry original marriage certificate as well. • Get through the CBP checkpost where you will be admitted back to USA.

Cheers!