Document ID: chunk:federal_register_of_legislation:F2019C00887:reg:3:p1
Version: federal_register_of_legislation:F2019C00887
Segment Type: reg
Provision Reference: reg 3 (pt 1/7)
Character Range: 101184–103951

3     >1.8 m and <2.3 m                  proportionately between 2.6 and 4 minutes

       (5)However, after 31 December 2019, any vessel with a livestock space that is either partially enclosed or not enclosed must have a mechanical ventilation system that is able to change the total volume of air in the space in accordance with Table 2.1.
       (6)For clause 2.2 and this clause, the volume of air in a space that is not enclosed includes all space between the extremities of a pen structure and passageways on the outboard sides or ends of the structure, but does not include the volume of any airtight tanks or trunks within the pen structure.

2.4 Mechanical ventilation system — air distribution requirements
       (1)A mechanical ventilation system must distribute air so that the whole of any livestock space is efficiently ventilated.
       (2)For a vessel constructed or converted for the carriage of livestock after 26 May 2004 — the mechanical ventilation system must provide air from a source of supply, with a velocity across a pen of at least 0.5 ms-1.
       (3)For a vessel constructed or converted for the carriage of livestock before 27 May 2004 — the mechanical ventilation system must, after 31 December 2019, provide air from a source of supply, with a velocity across a pen of at least 0.5 ms-1.
       (4)However, if a solid structure or the vessel's side impedes the flow of air in an area of the pen, AMSA may approve, for up to 4% of the area of the pen, a velocity less than 0.5 ms-1 but more than 0.2 ms-1.
       (5)For a livestock space, the livestock operator of the vessel must ensure that:
(a) the air is as clean and fresh as practicable; and
(b) there is minimal recirculation of intake and exhaust air.
Note   A vertical high velocity exhaust system may help prevent recirculation of exhaust and intake air.
       (6)Exhaust air outlets must not be sited near accommodation spaces on the vessel.
       (7)Ventilators serving livestock spaces must remain open in all weather conditions while livestock are on board.
Note   Under the Load Line Convention, ventilators may be left open in all weather conditions if they are at least 4.5 m above the deck on:
           * exposed freeboard decks;
           *  raised quarterdecks; and
           * exposed superstructure decks within a quarter of the ship's length from the forward perpendicular.
     If situated anywhere else, they must be at least 2.3 m above the deck.

2.5 Mechanical ventilation system — required redundancy
       (1)If a mechanical ventilation system is fitted, the vessel must carry, for each type of fan in the system, either:
(a) spare fans; or
(b) spare parts, including:
 (i) a complete electrical motor;
 (ii) a complete rotor or impeller;
 (iii)