My answer was given in response to my Rt Hon Friend’s question about European Standard EN 13432, PQ UIN 113024.

As stated in the Answer of 12 November 2020 to Question 113023, the Government published a call for evidence in July 2019 to help consider the development of standards or certification criteria for bio-based, biodegradable and compostable plastics as well as to better understand their effects on the environment and our current waste system. The call for evidence further considered existing standards, which includes BS EN13432, BS 8472, and ASTM D6954. We are currently analysing the responses received to inform future policy and will publish a response to the call for evidence shortly.

As I outlined previously, I appreciate the engagement of industry in our call for evidence and welcome further engagement in future consultations and policy development as our work develops.

EN 13432:2000 is an industry-derived harmonised EU standard which lays down minimum requirements for packaging recoverable through composting and biodegradation. It is a standard that has been adopted by national standards bodies in many of the EU Member States. In the UK it is published as BS EN 13432 by the British Standards Institution. Only packaging which has passed relevant tests and assessments can carry the standard. It has not been adopted into UK legislation.

Turning to standards and biodegradability more broadly, we are concerned that, in the absence of robust standards, claims about the biodegradability of plastic-based products cannot be verified leading to potential confusion in the market place, possible increased levels of consumption and potential environmental harm at the point of disposal. Furthermore, concerns persist that plastics which are claimed to be biodegradable, if littered or otherwise released into the environment in an uncontrolled way, may not degrade quickly or at all, and they can only be composted if they meet relevant standards.

As a consequence of these concerns, the Government published a call for evidence in July 2019 to help consider the development of standards or certification criteria for bio-based, biodegradable and compostable plastics as well as to better understand their effects on the environment and our current waste system. The call for evidence closed on 14 October 2019 and we are grateful for the responses submitted to us by industry and others. We are currently analysing the responses received to inform future policy and will publish a response to the call for evidence by the end of the year.

We appreciate the engagement of industry in the call for evidence and welcome further engagement in future consultations and policy development as our work develops.

The Hazardous Substances Advisory Committee is an independent scientific advisory committee. We tasked them to conduct a literature review of the published scientific literature. Stakeholder engagement was therefore not part of this process.

The government recognises that innovation into biodegradable plastics could help reduce the environmental impacts of plastics if they are disposed of in the right way. However, this is often not the case. We are concerned that, in the absence of robust and comprehensive standards, claims about the biodegradability of plastic-based products cannot be verified leading to potential confusion in the market place, possible increased levels of consumption and potential environmental harm at the point of disposal.

In 2015, a government report concluded that existing biodegradable standards are only applicable to very specific conditions such as industrial composters.  A review of oxo-biodegradable plastics has also conducted by the Hazardous Substance Advisory Committee in 2019. This can be found on their website at: https://www.gov.uk/government/groups/hazardous-substances-advisory-committee

As a consequence of these concerns, the government published a call for evidence last year to help consider the development of product standards or certification criteria for bio-based, biodegradable, and compostable plastics as well as to better understand their effects on the environment and our current waste system. The call for evidence closed on the 14 October 2019 and we are currently analysing the responses received. We will publish a government response before the end of the year. You can find out more information here: https://www.gov.uk/government/consultations/standards-for-biodegradable-compostable-and-bio-based-plastics-call-for-evidence