Yes. After migration is completed successfully, you can immediately sign in to EFS-Web and Private PAIR using your USPTO.gov account. In addition, after migration, practitioners can use the Sponsorship Tool to sponsor support staff who have a USPTO.gov account set up with two-step authentication. If you have any issues with migration, sponsorship, or being able to authenticate using USPTO.gov for EFS-Web or PAIR, please contact the Patent Electronic Business Center at firstname.lastname@example.org or call 866-217-9197, Monday - Friday, 6 a.m. to 12 a.m. ET.