OBS_VALUE: At the inter-state level, the ownership and/or management of the rail infrastructure is mostly separated from the provision of the rail services, with Australian Rail Track Corporation (ARTC) and Arc Infrastructure being the main rail infrastructure managers. Thus, the ARTC does not provide ‘above-rail’ services (such as haulage). At the intra-state level, there is a mix of vertically separated and vertically integrated structures. In New South Wales (NSW), the rail freight transport segment follows a vertically separated model.