RSPCA Australia acknowledges that, in certain circumstances, it is necessary to manage populations of wild animals in order to reduce adverse impacts on human activities, health and wellbeing or the environment and also to protect the welfare of individual animals. When undertaken, the RSPCA believes management activities must use methods that are humane, target-specific and effective.
Codes of practice and standard operating procedures for the humane control of pest animals in Australia have been developed by the NSW Department of Primary Industries with support from the Australian Government and these are available on the PestSmart website. PestSmart is a database of information on vertebrate invasive animals in Australia and New Zealand managed and maintained by the Centre for Invasive Species Solutions and the Institute for Applied Ecology at the University of Canberra and supported by the Australian Government through the Bureau of Rural Sciences.
The codes of practice (COP) provide general information on best practice management for different animal species, control strategies, animal biology and impact and also a summary of the humaneness, efficacy, cost-effectiveness and target specificity of each control method. Standard operating procedures (SOP) describe specific control techniques and their application as well as animal welfare impacts for target and non-target species and strategies to minimise any harmful impacts.
The ‘humaneness’ of a control method refers to the overall welfare impact that the method has on an individual animal. A relatively more humane method will have less impact than a relatively less humane method. A model for assessing the relative humaneness of pest animal control methods has been developed under the Australian Animal Welfare Strategy (AAWS) . This model has been used by an independent expert panel to assess the humaneness of a variety of methods used to control invasive animal species in Australia  and these assessments are also available on the PestSmart website.
Links to the COP, SOPs and humaneness assessments relating to the management of feral horses can be found below:
Code of practice
Model code of practice for the humane control of feral horses
Standard operating procedures
HOR001: Ground shooting of feral horses
HOR002: Aerial shooting of feral horses
HOR003: Mustering of feral horses
HOR004: Trapping of feral horses
Feral horse control methods humaneness matrix
 Sharp T. & Saunders G. (2008). A model for assessing the relative humaneness of pest animal control methods. Canberra ACT: Australian Government Department of Agriculture, Fisheries and Forestry
 Sharp T. & Saunders G. (2011). A model for assessing the relative humaneness of pest animal control methods (Second edition). Canberra ACT: Department of Agriculture, Fisheries and Forestry.