Emergency killing: the killing of animals which are acutely sick or injured that cannot be treated successfully and/or economically (IFC et al., 2017), is unfit for transport (Regulation 1/2005), and/or unfit for human consumption (Regulation 853/2004). 

ICF, SAFOSO, & AETS. (2017). Preparation of best practices on the protection of animals at the time of killing. Publications Office of the European Union. https://doi.org/10.2875/15243  

Council Regulation (EC) 1/2005 of 22 December 2004 on the protection of animals during transport and related operations and amending Directives 64/432/EEC and 93/119/EC and Regulation (EC) No 1255/97 [2005] OJ L3/1 

Council Regulation (EC) No 853/2004 of 29 April 2004 laying down specific hygiene rules for on the hygiene of foodstuffs [2004] OJ L139/55