# The Pollution Prevention and Control (Scotland) Regulations 2012, PART B


(a) Unless described in Part A of this Section, the carrying out of any activity involving the use in any 12 month period of—
(i) 5 tonnes or more of diphenyl methane di-isocyanate or other di-isocyanate of lower volatility than toluene di-isocyanate, or
(ii) partly polymerised di-isocyanates or prepolymers containing 5 tonnes or more of di-isocyanate monomers, where the activity may result in a release into the air of such monomers.
(b) The flame bonding or cutting with heated wires of polyurethane foams or polyurethane elastomers.
(c) Any activity, if not related to any other Part A activity, for the polymerisation or co-polymerisation of any pre-formulated resin or pre-formulated gel coat which contains any styrene, which is likely to involve, in any 12 month period, the polymerisation or co-polymerisation of 100 tonnes or more of styrene,
(d) Any activity, if not related to any Part A activity, for polymerising or co-polymerising any unsaturated hydrocarbons or a product of an activity described in Part A of this Section (other than a pre-formulated resin or pre-formulated gel coat which contains any unsaturated hydrocarbons), which is likely to involve, in any 12 month period, the polymerisation or co-polymerisation of 50 tonnes or more of any of those materials or, in aggregate, of any combination of those materials.

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Source: https://www.legislation.gov.uk/sdsi/2012/9780111018514/schedule/1/part/1/chapter/4/crossheading/part-a-part-b (the official version)
Page: https://openlegislation.uk/draft-pollution-prevention-and-control-scotland-regulations-2012/schedule-1/part-1/chapter-4/crossheading-part-a-part-b
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.