Regulation 2 Dark smoke – emissions from vessels

England, Wales and Scotland

(1)

Emissions of dark smoke from a chimney of a vessel for not longer than the period specified in column 2 of Schedule 1 to these Regulations, in respect of the class of case specified in column 1 of that Schedule, are emissions to which section 1 (prohibition of dark smoke from chimneys) does not apply, provided that—

(a)

continuous emissions of dark smoke caused otherwise than by the soot blowing of a water tube boiler do not exceed—

(i)

in the case of classes 1 and 2, 4 minutes;

(ii)

in the case of natural draught oil-fired boiler furnaces in class 4, 10 minutes; and

(b)

in no case is black smoke emitted for more than 3 minutes in total in any period of 30 minutes.

(2)

In paragraph (1)(b), “black smoke” means smoke which, if compared in the appropriate manner with a chart of the type known on 5th July 1956 (the date of the passing of the Clean Air Act 1956^f1) as the Ringelmann Chart^f2, would appear to be as dark as or darker than shade 4 on the chart.

(3)

For the purposes of Schedule 1, a vessel is not under way when it is at anchor or made fast to the shore or bottom, and a vessel which is aground is deemed to be under way.

Annotations

Footnotes

f1: 1956 c. 52, repealed by Schedule 6 to the Clean Air Act 1993.
f2: The Ringelmann Chart British Standard 2742C:1957.