When a vessel which has taken aboard a state-licensed pilot is docking, undocking or anchoring, the state-licensed pilot shall remain on the bridge, attentive to duty, until the vessel has at least one ship's line secured to the dock or until the vessel is anchored properly and firmly within a designated anchorage area or until the state-licensed pilot is discharged at the pilot station area upon the vessel's departure to sea. This section does not prohibit the master of a vessel from employing the services of a docking master.
4 Pa. Code § 405.19a