Schedule I1F1
England, Wales and Scotland
Original text. Later amendments are not shown.
(1) | (2) |
|---|
Class of case | Permitted period for emission of dark smoke |
|---|
1. Emissions from a forced draught oil-fired boiler furnace, or an oil engine. | 10 minutes in the aggregate in any period of 2 hours. |
2. Emissions from a natural draught oil-fired boiler furnace (except in the cases falling within class 4 below). | 10 minutes in the aggregate in any period of 1 hour. |
3. Emissions from a coal-fired boiler furnace:— |
(a) when the vessel is not under way (except in the cases falling within class 4 below). | 10 minutes in the aggregate in any period of 1 hour. |
(b) when the vessel is under way | 20 minutes in the aggregate in any period of 1 hour. |
4. Emissions from a natural draught oil-fired boiler furnace or a coal-fired boiler furnace in the following cases:— |
(a) a vessel with funnels shortened for the purpose of navigating the Manchester Ship Canal; |
(b) a tug not under way, but preparing to get under way or supplying power to other vessels or to shore installations; | 20 minutes in the aggregate in any period of 1 hour. |
(c) a vessel not under way but using main power for the purpose of dredging, lifting, pumping or performing some other special operation for which the vessel is designed. |
5. Emissions from any other source | 5 minutes in the aggregate in any period of 1 hour. |