For every ton of the admeasurement of every vessel arriving from any port or place in Northern Ireland, Great Britain or the State and discharging or loading in the Wet Dock or at Dernish, for every arrival a sum not exceeding

For every ton of the admeasurement of every vessel arriving from any port or place other than a port or place in Northern Ireland, Great Britain or the State and discharging or loading in the Wet Dock or at Dernish, for every arrival a sum not exceeding

For every ton of the admeasurement of every vessel arriving from any port or place in Northern Ireland, Great Britain or the State reporting at the Custom House of Limerick or discharging or loading at any quay or place outside the Wet Dock or at Dernish, for every arrival a sum not exceeding

For every ton of the admeasurement of every vessel arriving from any port or place other than a port or place in Northern Ireland, Great Britain or the State reporting at the Custom House of Limerick or discharging or loading at any quay or place outside the Wet Dock or at Dernish, for every arrival a sum not exceeding

For every ton of the admeasurement of every vessel arriving for a purpose other than to discharge or load cargo, for every arrival:--

(a) in lieu of the sum specified at whichever of reference numbers 1 or 2 would be applicable if the vessel were discharging or loading in the Wet Dock or at Dernish, a sum not exceeding half that sum,

(b) in lieu of the sum specified at whichever of reference numbers 3 or 4 would be applicable if the vessel were reporting at the Custom House of Limerick or discharging or loading at any quay or place outside the Wet Dock or at Dernish, a sum not exceeding half that sum.

For every ton of the admeasurement of every vessel arriving from a port other than a port in Northern Ireland, Great Britain or the State and--

(a) discharging or loading an amount of cargo the tonnage of which does not exceed one-half of the net register tonnage of the vessel, or

(b) discharging and loading an amount of cargo the tonnage of which does not in the aggregate, exceed one-half of the net register tonnage of the vessel,

(i) in lieu of the sum which, but for this reference number, would be chargeable, if reference number 2 in this Part of the Schedule were applicable, a sum not exceeding half that sum,

(ii) in lieu of the sum which, but for this reference number, would be chargeable if reference number 4 in this Part of this Schedule were applicable, a sum not exceeding half that sum.

For every ton of the admeasurement of every vessel lying in the Wet Dock or at any quay or in any part of the River Shannon within the port (other than any part of that river included within the respective limits of the harbours of Foynes, Kildysart, Glin, Tarbert or Kilrush) more than one month, for every period of fourteen days exceeding the first month or any part of such period, a sum not exceeding

(a) For every mechanically propelled vessel trading in or upon the River Shannon, for every arrival at the quays or in the Wet Dock--

If not exceeding 20 tons net register tonnage a sum not exceeding

If exceeding 20 tons but not exceeding 50 tons net register tonnage, a sum not exceeding

If exceeding 50 tons but not exceeding 100 tons net register tonnage, a sum not exceeding

If exceeding 100 tons but not exceeding 150 tons net register tonnage, a sum not exceeding

If exceeding 150 tons net register tonnage, for every ton of the net register tonnage thereof, a sum not exceeding

(b) for every vessel other than a mechanically propelled vessel trading in or upon the River Shannon, for every arrival at the quays or in the Wet Dock, a sum not exceeding one-half of the rate which would be chargeable if the vessel were a mechanically propelled vessel.