Infrastructure Australia functions as set out in the Infrastructure Australia Act 2008

(1) Infrastructure Australia has the primary function of providing advice to the Minister, Commonwealth, State, Territory and local governments, investors in infrastructure and owners of infrastructure on matters relating to infrastructure, including in relation to the following:

(a) Australia's current and future needs and priorities relating to nationally significant infrastructure;
(b) policy, pricing and regulatory issues that may impact on the utilisation of infrastructure;
(c) impediments to the efficient utilisation of national infrastructure networks;
(d) options and reforms, including regulatory reforms, to make the utilisation of national infrastructure networks more efficient;
(e) the needs of users of infrastructure;
(f) mechanisms for financing investment in infrastructure.

Additional functions

(2) Infrastructure Australia has the following additional functions:

(a) to conduct audits to determine the adequacy, capacity and condition of nationally significant infrastructure, taking into account forecast growth;
(b) to develop lists (to be known as Infrastructure Priority Lists) that prioritise Australia's infrastructure needs;
(c) to review and provide advice on proposals to facilitate the harmonisation of policies, and laws, relating to development of, and investment in, infrastructure;
(d) to evaluate proposals for investment in, or enhancements to, nationally significant infrastructure;
(e) to identify any impediments to investment in nationally significant infrastructure and identify strategies to remove any impediments identified;
(f) to promote investment in infrastructure;
(g) to provide advice on infrastructure policy issues arising from climate change;
(h) to review Commonwealth infrastructure funding programs to ensure they align with any Infrastructure Priority Lists;
(i) to undertake or commission research relating to Infrastructure Australia's other functions;
(j)any functions that the Minister, by writing, directs Infrastructure Australia to perform;
(k) any other functions conferred on Infrastructure Australia by this Act or any other law.