Basic Lashing Workforce. Container terminal operators shall have the right to employ a basic lashing work force to perform the lashing/unlashing, blocking/unblocking, securing/unsecuring aboard vessels (except roll-on/roll-off) and on the brow to attach/remove lashing fittings and wires to/from containers only for their loading/discharge. This does not apply to the securing/unsecuring of cargo on headboard flats on the brow. It is understood that when de-icing is performed, employees from the lashing basic work force will be used (subject to Article 2A.06(b). At a container terminal, if lashers unbatten hatch covers, they shall xxxxxx same. At container terminal operations, when working aboard a vessel, the standing up, knocking down and securing of headboard flats will be performed by the lashing workforce. When lashers are employed, a xxxxxxx will be assigned to direct all such work except when more than four (4) lashers are working on more than one (1) vessel, then a xxxxxxx will be assigned to each vessel.