The Forestry Commission is the regulator for the legal felling of trees in England under the provisions in the Forestry Act. Most felling licences issued require felled trees or areas of woodland to be replaced by replanting or allowed to regenerate. The exception to this is a thinning licence, where sufficient woodland cover is retained so as not to require restocking. When considering a felling licence application the Forestry Commission will judge the proposals against the UK Forestry Standard, the government’s approach to sustainable forestry. This is available on GOV.UK at https://www.gov.uk/government/publications/the-uk-forestry-standard. This standard encompasses the impacts on biodiversity and recognises the importance of priority habitats and species. This is why a felling licence also includes advice and guidance on additional issues a landowner needs to take into account. The restocking conditions in a felling licence are put in place to help meet the aims of the management of the site through good silvicultural practice. While the Forestry Commission does advise on a suitable species mix there are no provisions in the Forestry Act to mandate the source of trees and whether they are native or non-native. The guide to Managing England’s woodlands in a climate emergency, advises to manage ancient woodlands in a manner which conserves important biodiversity and heritage features. Greater diversification of species and origin of stands is advised, with a focus on southerly provenances of native species. Due to the unknown nature of acceleration of climate change, management intervention may need to be more frequent in order to preserve these rare habitats effectively. This is available on GOV.UK at https://www.gov.uk/government/publications/managing-englands-woodlands-in-a-climate-emergency.