ANALYSIS: The obligation carriers cannot ignore under Part X

THE COMPETITIVE exemptions available under Part X of the Competition and Consumer Act 2010 (Cth) are not granted unconditionally. In exchange for the right to coordinate pricing and capacity, carriers operating in Australia's liner trades accept a reciprocal obligation: they must maintain minimum levels of service.

This requirement is not administrative fine print, it is a foundational condition of the exemption, and its importance is sharpening in an era of fuel supply uncertainty and hard-nosed network rationalisation by global carriers.

What are minimum levels of service?

Under Part X, registered shipping conference agreements and certain other registered liner agreements must specify the minimum level of service that parties to the agreement will collectively provide on the relevant trade. This includes the frequency of sailings, the ports to be called, and the cargo types to be carried.

The minimum service obligation exists because the policy rationale for the Part X exemption has always been that coordinated liner services deliver a public benefit,  reliable, scheduled connectivity for Australian exporters and importers that a fragmented, purely competitive market might not sustainably provide. The exemption is, in essence, a bargain: carriers receive protection from competition law in exchange for committing to service continuity.

Where parties to a registered agreement fall below the minimum service levels specified in that agreement, the conduct of those parties may no longer be protected by the Part X exemption. That is a significant exposure. Coordinated pricing or capacity decisions made in breach of service obligations could, in principle, be assessed as cartel conduct under the general provisions of the Competition and Consumer Act 2010 (Cth)  with serious legal consequences.

Why this matters now: Bunker availability and cost pressures

The global bunker fuel market has introduced a new dimension of risk for Australian liner trades. Australia is unusual among major trading nations in that it has limited domestic bunkering infrastructure capable of servicing deep-sea container vessels. Ocean-going liner vessels calling Australian ports overwhelmingly bunker offshore,  typically at Singapore, Port Klang, or other regional hubs, before completing their rotation into Australian ports.

This creates a structural vulnerability. When bunker availability tightens globally, or when the price differential between compliant low-sulphur fuel and conventional heavy fuel oil widens significantly, the economics of completing an Australian port rotation can deteriorate rapidly. Australia's relatively small volumes on many trade lanes, combined with the time and cost of port calls in a large and geographically dispersed continent, mean that Australian services sit near the margin of profitability on several carrier networks.

The practical risk is this: a carrier or alliance group facing acute bunker cost pressure or supply uncertainty may assess that omitting Australian port calls, reducing sailing frequency, or withdrawing from a trade altogether is a rational commercial response. In isolation, any one carrier making that assessment might do so within the bounds of its commercial discretion.

But where parties to a registered Part X agreement collectively reduce service below the agreed minimum (whether through coordinated omission of port calls, blanket sailings, or suspension of services) the question of whether the Part X exemption still applies becomes live and contested.

The regulatory and commercial stakes

For Australian shippers, particularly agricultural exporters and importers of time-sensitive goods, a reduction in liner service frequency is not merely inconvenient. It disrupts supply chains, increases inventory carrying costs, and in some cases threatens the viability of export programs tied to seasonal windows.

The minimum service obligation under Part X provides a legal basis for shippers and shipper bodies to push back. Where a registered agreement specifies service parameters that are not being met, affected parties can raise the matter with the ACCC and, ultimately, with the Minister, who holds reserve powers to act on registered agreements that are not delivering their stated public benefit.

Shipper councils and industry bodies should be actively monitoring whether the services being operated on key trades (particularly those serving regional and agricultural export ports) are consistent with the service commitments recorded in registered agreements. Documentation of service failures, including blanked sailings, port omissions, and capacity withdrawals, is the foundation of any regulatory or commercial response.

A condition, not a courtesy

The minimum service obligation is sometimes treated by carriers as a background formality, a box ticked at the time of registration and not revisited. That approach misunderstands the structure of Part X. The exemption is conditional and ongoing. Service levels are not a gesture of goodwill toward Australian trade; they are the consideration for the competitive protection the regime provides.

As fuel economics, alliance restructuring, and network rationalisation continue to put pressure on marginal trade lanes, Australian shippers and regulators would do well to treat the minimum service obligation not as a legacy provision, but as one of the most practically important protections Part X contains.

This article is for general informational purposes and does not constitute legal advice. Operators should seek specialist competition law counsel for advice specific to their arrangements.