The last time America taxed Australian lamb, the tariff hit 40 per cent. Here is how this case works, and what a 3-3 tie means

From July 1999, Australian lamb landing in America above a set quota paid an extra 40 per cent tariff. Two years later the World Trade Organization ruled that the tariff broke the rules, and Washington switched it off.

Twenty-seven years on, the same fight is back, and it is closer than ever. On Friday, US time, the six members of the US International Trade Commission split three-all on whether lamb imports have seriously injured the American sheep industry. The tie keeps the case alive and puts the final call on Australia’s most valuable single lamb market with President Donald Trump.

Here is how the process works, what is really at stake, and what to watch for.

What is a safeguard case, and how is it different from dumping?

Most trade cases accuse a foreign seller of something: selling below cost (dumping) or being propped up by government money (subsidies). A safeguard case, brought under section 201 of America’s Trade Act of 1974, accuses no one.

The test is simpler. The commission asks whether imports have risen so much that they are a “substantial cause” of serious injury, or the threat of it, to an American industry. Substantial means important and no less important than any other single cause, such as drought, feed costs or falling demand.

The harm has to be “serious”, a higher bar than in a dumping case, which is one reason safeguards are rare. They are meant as temporary breathing space for an industry to adjust, and they usually apply to imports from every country, not one.

Why does a 3-3 tie favour the American farmers?

Because of one line in US trade law. When the commissioners voting are “equally divided”, the president may treat the finding of either group as the commission’s decision.

In this case the three commissioners who found injury were Chairman Brett Doyle and Commissioners Jason Kearns and Bart Thanhauser. The three who did not were Peter-Anthony Pappas, David Foley and Samuel Negatu. Both sets of views, and both sets of recommendations, now go to the president.

There is a second detail Australians should notice. The commission also has to say whether imports from each of America’s free trade partners are, on their own, a substantial cause. Imports from partners that are not can be left out of a global safeguard. The three commissioners who found injury said Australian imports individually were a substantial cause; imports from Canada, Mexico, Korea, Colombia, Peru, Singapore and several others were not. If the president adopts their view, Australia cannot count on its free trade agreement to keep it out.

What could Trump actually do?

US law gives the president wide choices, and 60 days after receiving the commission’s report to make them. The main tools are:

1. A higher tariff, capped at 50 percentage points above the rate already in place.
2. A quota: a hard limit on how much lamb can come in.
3. A tariff-rate quota: a set volume enters at a low tariff, and everything above it pays a much higher one. This is what America chose in 1999.
4. Adjustment help for US farmers, such as grants, with or without a trade barrier.
5. No action at all, if the president decides a remedy is not in the national economic interest.

Any measure can last up to four years at first and no more than eight with extensions, and one lasting more than a year has to be wound down in steps. If the president does less than the commission recommends, or nothing, Congress can impose the commission’s recommendation by passing a joint resolution within 90 days.

What happened last time?

The 1999 case is the best guide to what a remedy might look like. President Bill Clinton announced it on 7 July 1999 and it took effect on 22 July.

| Year of the measure | Tariff on lamb within the quota | Tariff on lamb above the quota | |—|—|—| | Year 1 (from July 1999) | 9% | 40% | | Year 2 | 6% | 32% | | Year 3 | 3% | 24% |

The quota was 31,851 tonnes in the first year, equal to 1998 imports, rising by 857 tonnes a year. It was split between Australia, New Zealand and everyone else by their 1998 shares. Clinton also offered US sheep producers up to US$100 million in adjustment assistance over three years.

Australia and New Zealand took the measure to the WTO within weeks. In May 2001 the WTO’s Appellate Body upheld findings that America had broken the safeguard rules, including by failing to show the “unforeseen developments” that justify emergency protection and by failing to prove that imports, not other factors, caused the damage. Washington ended the tariffs on 15 November 2001, eight months before they were due to expire.

The WTO route is far weaker today. Its Appellate Body has not had enough judges to hear appeals since late 2019, so a country that loses a panel ruling can appeal it into a void.

How big is the trade at stake?

Big enough to matter to every Australian sheep producer. Australia supplied about three-quarters of the lamb America imported in 2024, with New Zealand supplying most of the rest. Imports make up roughly 70 per cent of the lamb and mutton Americans eat, according to the US sheep industry.

Australian lamb exports to the US were worth $1.36 billion in the 2024-25 financial year, up 19 per cent on the year before. In 2025, by industry estimates, the US took about a quarter of all Australian lamb exports, which reached a record value of more than $4.2 billion.

What does it mean for Australian farmers and shoppers?

For producers, two months of uncertainty over their best-paying market. A tariff or quota would push more Australian lamb towards other buyers such as China, the Middle East and the UK, and more supply chasing those markets can weigh on the prices paid at Australian saleyards.

For Australian shoppers, the effect is less direct and harder to predict. More lamb staying in Australia could ease local prices a little, but lamb prices here are set by global demand, the size of the national flock and the season as much as by any one market.

For American shoppers, Australia’s argument is blunt: its ambassador told the commission that restricting imports would only raise costs for US consumers. Australian industry bodies say their lamb fills seasonal gaps that American farmers cannot meet.

Why is this happening now?

American sheep producers have campaigned for years. Their association asked for the investigation in October 2025, and the US Trade Representative, Jamieson Greer, formally requested it on 13 July 2026. The industry says imports rose 45 per cent between 2020 and 2024 and undersold American lamb in more than 90 per cent of price comparisons.

America’s flock, meanwhile, has been shrinking for decades, a decline that continued through the 1999 safeguard. That history hangs over any new tariff: the last round did not bring the US industry back.