Before assuming the new work is covered by the original proposal. Changed duties, supervision or placement terms may require a different assessment or additional steps.
Keep the differences specific
Identify the new site, the work and the controlling agreements, with effective dates. Preserve the original account so the reviewer can compare them. A delivery deadline does not establish authority to begin a materially different assignment while the immigration questions remain unresolved.
Build the calendar from present facts: the worker’s qualifying foreign-employment dates, evidence-completion milestones, chosen petition procedure, requested assignment start and existing periods in L status. If the assignment is genuinely tied to a commissioning window, say so in the petition as the business reason for the transfer; a specific operational purpose strengthens the knowledge claim rather than weakening it. Evidence must still establish a qualifying corporate relationship, one continuous eligible foreign year in the previous three, and specialized company knowledge required by the American assignment. The transfer can be deferred until the applicant has worked with the receiving method; the assignment can be rewritten around the knowledge actually held today; or a different category may fit better and should be assessed on its own conditions.