
1 
These Regulations may be cited as the Large Combustion Plant (Control of Emissions) (Scotland) Regulations 1991, shall extend to Scotland only, and shall come into force on 1st April 1991.
2 
In these Regulations—
 “the Act” means the Health and Safety at Work etc. Act 1974;
 “chief inspector” means an inspector so appointed for the purposes of these Regulations by the Secretary of State under section 19 of the Act;
 “emission” means the discharge of substances into the air;
 “operator” means any natural or legal person who operates the plant or who has or has been delegated decisive economic power over it;
 “plant” means existing plant within the meaning of Council Directive 88/609/EEC;
 “HMIPI Register” means the register of plant emission limits issued by Her Majesty’s Industrial Pollution Inspectorate with reference to the UK national plan made by the Secretary of State under section 3(5) of the Environmental Protection Act 1990 on 20 December 1990 and any reference in these Regulations to the HMIPI Register means that register as revised or re-issued from time to time;
 “reporting period” means such period of not less than 28, and not more than 35, days as the operator may, with the approval of the chief inspector, determine.
3 
lt shall be the duty of the operator of each plant to ensure that the emissions of sulphur dioxide and oxides of nitrogen from the plant during the period from 1st April 1991 until 31st December 1991 and during 1992 do not exceed the maximum permitted levels specified for that plant in respect of those periods in the HMIPI Register.
4 
The operator of each plant shall monitor the emissions of sulphur dioxide and oxides of nitrogen from the plant in such manner as may be specified by the chief inspector and shall inform the chief inspector in writing—
(a) within one month of the end of each reporting period, of the quantity of each of those substances emitted from the plant in that period,
(b) of the fact that the plant has emitted 95% of its maximum permitted level of emissions in respect of either substance, as soon as that has occurred, and
(c) as soon as practicable, of any change in circumstances relating to energy demand, the availability of fuel or any technical difficulties likely to affect the plant’s operation which might cause the plant to exceed either of its said maximum permitted levels of emission.
5 
If the chief inspector has reason to believe that a plant is likely to exceed either of its maximum permitted levels of emissions specified in the HMIPI Register, he may require the operator to submit to him written particulars of the measures proposed by the operator to be taken to achieve compliance with regulation 3 above.
6 
The Secretary of State shall be responsible for the enforcement of these Regulations for the purposes of Part I of the Act.
James Douglas-Hamilton
Parliamentary Under Secretary of State, Scottish Office
St Andrew’s House,
Edinburgh
8th March 1991