From the preparatory signal you may anchor or stand on the bottom, but you must recover the anchor before continuing unless you cannot. Hauling out or making fast to anything is allowed only to bail, reef or repair.
RRS 2025–2028 · Part 4, Section A
45 Hauling Out; Making Fast; Anchoring
Be afloat and off moorings by the preparatory signal; after that no hauling out or tying up except to bail, reef or repair.