I will set the scene a wee bit about what rendering is and about the regulatory background to the issue that we are bringing to you today.
Rendering is a very important part of the recycling industry in Scotland and England. It supplies tallow for the production of biodiesel and meal for pet-food manufacture. As Andrew Wood has said, it has played an important role in biosecurity over the years—for example, in the BSE and foot-and-mouth crises.
Rendering is a cooking process. Essentially, liquid is driven off and a highly odorous gas is produced as part of the process. It is that vapour that causes rendering to come under environmental scrutiny. Since the mid-2000s, all rendering plants in the UK have been regulated under the PPC—the pollution prevention and control regime—which has been transposed from Europe into Scottish and English law.
To understand our concerns, you need to understand the fundamental philosophy of PPC and how it was transposed in England compared with Scotland. At its core, PPC requires for environmental issues to be addressed in an integrated way across all media: soil, air and water. It requires an installation to use the best available techniques, or BAT, to achieve that.
Europe provided guidance on BAT for different processes in the form of BAT reference documents, but it was left up to member states to decide how to implement that guidance in their own permits. For rendering, the implementation has been different over the years in Scotland compared with England. In Scotland, we have a single regulator, the Scottish Environment Protection Agency, which regulates all rendering plants. In England, a rendering plant is usually regulated by the local authority. Except for an accident of geography, each site will have a different regulator. You can argue that Scottish regulation is a lot more consistent.
In Scotland, a rendering plant does not comprise a particularly complex process on the spectrum of SEPA’s regulatory responsibilities, whereas in England a rendering plant is often a local authority’s most complex plant compared with much simpler set-ups such as petrol stations and dry cleaners.
SEPA applies a risk-based approach to its definition of the best available techniques, whereas in England local authorities use guidance from the Department for Environment, Food and Rural Affairs in the form of the rendering sector guidance note, a document to which SEPA gives cognisance but which it has not adopted as guidance.
In our experience, those things mean that PPC permits in Scotland are more robust than their English counterparts, the compliance bar is higher, and regulator scrutiny is more detailed. Because of the way in which BAT is applied, there are circumstances in which a compliant English plant would not be compliant in Scotland.
Those differences mean that compliance costs more in Scotland. We have produced a document that highlights some of those costs, including a significant difference in permit scheme charges between SEPA and the English local authorities. That document formed the basis of the petition.
We are concerned that a nationwide industry should be treated so differently in England compared with Scotland, but we believe that recent changes in environmental legislation provide an opportunity to narrow the gap. Those changes are in the European industrial emissions directive, which has recently been transposed into English and Scottish law.
The European BAT reference documents are an important part of that. They provide guidance on the best available techniques, and they will be reviewed for each sector. They will be updated and summarised into a set of conclusions and emission limits, which member states must use as a basis for setting and revising permit conditions.
Work in the rendering sector is in the early stages and is expected to be completed by 2018. We would like the Scottish Government to ensure that, at the end of the process, SEPA and DEFRA, which will provide guidance to local authorities, agree on the same definition of BAT for the rendering industry in the UK, and that the same emission limit values apply in England and Scotland, thus levelling the currently unlevel playing field.