Petitioners choosing to participate in the program will be asked to:
- Submit Form I-129, Petition for a Nonimmigrant Worker, with supporting evidence, to the California Service Center before seeking L-1 admission to the United States through the Blaine port of entry; and
- Use a cover sheet annotated with “Canadian L” to ensure quick identification of the Form I-129.
Further details in USCIS' announcement are at this link.