(iii) pilot lights in flare stacks located within a gas gathering system or gas field, or

For example, where the waste gases of two or more separate plants are discharged through a common stack, the combination formed by such plants is considered as a single combustion plant and their capacities are added for the purpose of calculating the total rated thermal input.

(Return tabled) Question No. 130 Mr. Francis Scarpaleggia: With regard to rail safety in Canada: (a) for the period of 2006-2012, which railways were permitted to operate with a single operator; (b) for the period of 2006-2012, which railways had permission to leave trains unattended for limited periods of time on main lines with or without an idling locomotive(s); (c) for the period of 2006-2012, which railways had permission to leave trains unattended for limited periods of time on side lines with or without an idling locomotive(s); (d) with regard to the railways in (b) and (c), under what specific conditions could the trains be left unattended; (e) what legislative or regulatory framework governs local emergency pre ...[+++]paredness plans in the event of a rail accident; (f) with respect to the plans in (e), (i) who is responsible for creating and executing such plans, (ii) by whom are they audited, (iii) how often are they audited, (iv) against what criteria are they audited; (g) by whom and how often are municipalities through which freight trains pass provided with regular reports on (i) the state of local emergency preparedness in the event of a rail accident, (ii) the state and maintenance record of the railway lines within their borders, (iii) the materials, hazardous or not, that are transported through their jurisdiction; (h) if reports referred to in (g) are not provided, why not; (i) how many of the DOT-111 railway tank cars and the DOD-112 tank cars are in use in Canada, for each year since 2006; (j) for each year since 2006, how many rolling stock and track safety inspectors were employed at Transport Canada, broken down by (i) province of work, (ii) oversight responsibility; (k) for each year since 2006, how many rolling stock and track safety inspectors employed by Transport Canada were responsible for inspections in (i) the Greater Montreal Area, (ii) the municipality of Pointe-Claire (iii) the municipality of Beaconsfield, (iv) the municipality ...

Member States must ensure that waste gases from combustion plants are discharged via stacks high enough to safeguard human health and the environment.

Waste gases from combustion plants shall be discharged in controlled fashion by means of a stack.

Where two or more separate new plants are installed in such a way that, taking technical and economic factors into account, their waste gases could, in the judgement of the competent authorities, be discharged through a common stack, the combination formed by such plants shall be regarded as a single unit.