Spotted some Pilot Boats in the Port of Auckland, New Zealand and Melbourne & Fremantle Australia (Port codes: Auckland:NZ AKL ; Melbourne:AU MEL ; Fremantle:AU FRE).
PILOT HOLTENAU (MMSI: 211533730) is a Pilot Vessel and is sailing under the flag of Germany.
Her length overall (LOA) is 17 meters and her width is 6 meters.
Each pilot association and each country can get a good overview of how other colleagues approach safety.
Ship crews can see which rules apply in which country.
In any case, this list from IMPA is worth looking through and reading.