Equipment delivery, line qualification dates, the availability of the engineers who must describe the process, and the point at which the receiving site can commit to a defined role. Government steps follow that preparation and should not be treated as a fixed date on the project plan.
Work backwards from the qualification run
Identify the plant milestone the transfer actually serves, then set earlier dates for the process description, the applicant's work history, the disclosure sign-off, and legal review. Equipment slips are common, so decide in advance what happens to the immigration plan if the milestone moves. Keep petition approval, visa issuance where applicable, admission, and the lawful start of work as separate events on that schedule.
Identify the single plant milestone the transfer serves, then set the preparation dates behind it with real slack. Equipment slips, and a schedule with no float turns an ordinary delay into a decision made badly. Agree now what happens to the plan if the milestone moves by a quarter: whether the file is held, filed anyway, or reworked for a different role.
Keep the qualifying year in view while the schedule moves, since a long delay can push the applicant outside the three-year window in which the continuous year abroad must fall. Communicate to the receiving site only events that have occurred, and keep approval, issuance, admission, and the start of work distinct. That distinction avoids a start date being announced twice.