6/C "Entire Turn (or Multi-Turn) Ship Movement Initiated:" section
4. Ships engaging in WORM-II/III/IV (C7.30-C7.50) to travel to other galaxies depart
5. Ships engage silent running (no 1 segment delay, unlike the mid-turn method).
6/C "Segmented Movement and Activity (Segments 1-12)" section
12. Evaluate terrain effects from movement: ...
Ships that engaged silent running in a previous segment are now hidden. Ships disengaging silent running mid-turn are no longer hidden. Ships ordered to engage silent running mid-turn power down their sensor gear (but take a segment to be hidden from the enemy).
13. Any units using Reactionary Movement ...