Interprovincial trade barriers in food: why a cheese can be foreign at a provincial border

A wheel of cheese made in Quebec can usually be sold in Ontario without trouble. A side of beef from a small Saskatchewan abattoir cannot be sold in Alberta at all. A bottle of Nova Scotia wine may need to pass through a liquor board's warehouse before it reaches a shop in Ontario. None of these goods crosses an international border, and Canada has had a domestic free trade agreement since 2017. Yet in food, more than in most sectors, the provincial line still matters.

With talk of United States tariffs on Canadian goods filling the news since late November 2024, internal trade has come back into the conversation. Premiers and ministers are asking a question that economists have asked for decades: if Canada wants to sell more to itself, what is in the way? This piece walks through the main barriers in food and drink, why each one exists, and what the public estimates say they cost.

The agreement that is supposed to fix this

The Canadian Free Trade Agreement came into force on 1 July 2017, replacing the Agreement on Internal Trade that had been in place since 1995. The federal government, the provinces and the territories all signed it.

The biggest change was in its approach. The older agreement covered only the sectors it named. The new one applies to almost all economic activity unless an exception is written down. That sounds sweeping, but the written exceptions are long. Each government listed its own carve-outs in party-specific schedules, and those schedules run to many pages. Alcohol was left largely to a working group, which was asked to report on options for freer trade in beer, wine and spirits. Collective marketing of farm goods, the legal basis of supply management, sits in a separate article that preserves governments' ability to restrict the movement of poultry, eggs and dairy across provincial lines.

The agreement also set up the Regulatory Reconciliation and Cooperation Table, a forum where governments pick specific rules that differ from province to province and try to align them. Progress there has been real but slow, item by item, and the agreement's own dispute process allows penalties that are small next to the value of trade in question.

So the agreement changed the default. It did not remove the barriers that matter most in food, because many of those were written into the exceptions or rest on separate federal and provincial law.

Four kinds of barrier

Barriers in food fall into four rough groups. They work in different ways, and they are defended for different reasons.

Each row deserves a closer look.

Meat: two inspection systems, one border

Canada runs two meat inspection systems side by side. The Canadian Food Inspection Agency inspects plants licensed under the Safe Food for Canadians Regulations, which took effect on 15 January 2019. A licence is required to slaughter animals for meat that will be sent to another province or exported, and federally inspected meat carries the round inspection legend that buyers recognize.

Provinces run their own inspection programs for smaller plants. Those plants are inspected, often by provincial staff or contracted veterinarians, and their meat may be perfectly safe. But provincially licensed meat may only be sold inside the province where it was produced. The border is not about what the meat is. It is about which inspection system stamped it.

Moving from provincial to federal licensing is a large step for a small plant. Federal rules bring requirements on facility design, written preventive control plans, record-keeping and inspector presence that make sense for a large export plant and weigh heavily on a family abattoir. Many small operators decide that the extra market is not worth the cost.

An illustrative small meat plant

Take an illustrative plant near the Saskatchewan and Alberta line. The numbers are round and invented, to show the economics rather than any real business.

• The plant slaughters and cuts about 25 cattle a week for local farmers and a handful of butcher shops, all inside Saskatchewan.
• A grocery buyer in Alberta, a short drive west, wants to stock its custom-cut beef.
• To sell into Alberta, the plant would need a federal licence. The owner estimates the upgrade at, say, $400,000 for changes to the building and equipment, plus one extra full-time person for paperwork and food safety records.
• The new Alberta business might add 10 head a week.

At an illustrative margin of $150 per head, 10 extra head a week brings in about $78,000 a year before the extra wages. After paying for one more employee at, say, $55,000 a year, the plant clears about $23,000 a year toward a $400,000 upgrade. That is a payback of more than 17 years, and that is if the grocery account lasts. Most owners would say no.

From the outside, the decision looks like caution. From the inside, it is arithmetic. A barrier that costs a federal plant almost nothing can be decisive for a small one, which is why the meat rule shows up again and again in lists of internal trade irritants and in talk about local food, the subject of a page on local food demand and what gets in its way.

Dairy, poultry and eggs: borders built into supply management

Supply management for milk, chicken, turkey, eggs and broiler hatching eggs works by setting production to match expected demand and allocating that production among provinces. The national milk market is shared under federal and provincial agreements, and each provincial board then divides its share among its farmers as quota. Chicken, turkey and egg agencies allocate national totals among provinces in a similar way. A walk through how Canada's dairy quota system works covers the moving parts.

This design puts the province at the centre. A dairy farmer in Ontario cannot buy quota from a farmer in Manitoba and move it east, because quota is held and traded inside provincial systems. Provincial boards control the marketing of the regulated product, and the Canadian Free Trade Agreement's article on collective marketing keeps their power to restrict the movement of these goods between provinces when the restriction serves the marketing arrangement.

Processed dairy is different. A cheese made in a federally licensed Quebec plant can generally be sold anywhere in Canada, which is why most shoppers never notice the system at the cheese counter. The constraint sits upstream, on the farm milk and on who may produce it. Fluid milk is the most provincial of all, since provincial boards set its farm price and organize its supply.

Supporters of supply management argue that the provincial structure is the point: it keeps milk, poultry and egg production spread across the country rather than concentrated in the lowest-cost regions. Critics answer that it prevents efficient farms from growing beyond their province's allocation and keeps new processors from sourcing where milk is cheapest. Both are describing the same feature.

Alcohol: the most famous barrier

Alcohol has long been the best-known example, partly because ordinary consumers run into it.

For decades, a federal law from 1928, the Importation of Intoxicating Liquors Act, required liquor moved between provinces to go through a provincial liquor authority. Parliament amended it in 2012 to let individuals carry wine across provincial lines for personal use, extended the change to beer and spirits in 2014, and in 2019 removed the remaining federal restriction. That left the matter with the provinces, and provincial law still governs how much a person can bring in and whether a winery can ship directly to a customer in another province.

In 2018 the Supreme Court of Canada ruled on a case about a New Brunswick resident who brought beer home from Quebec and was fined under New Brunswick's limits. The court upheld the provincial limits, finding that the constitution's clause on free movement of goods between provinces does not bar laws whose main purpose is something other than impeding trade. The ruling meant that the path to freer trade in alcohol runs through provincial governments, not the courts.

Each province's liquor board decides which products to list, sets mark-ups and in some cases runs the stores. A small winery in one province may find that listing in another province's system is slow, uncertain and sometimes costlier than exporting abroad. Some provinces have made bilateral arrangements for direct shipping, and the list has grown, but it remains a patchwork.

Smaller rules that add up

Beyond the big three, food businesses report a long tail of differences: provincial rules on how certain products may be labelled or graded, differing permits for food trucks and mobile vendors, different weight and dimension rules for trucks, and separate licensing for some farm product dealers. Any one of them is minor. Together they mean a processor selling in four provinces must keep four sets of paperwork in order.

What the barriers cost

Putting a dollar figure on internal barriers is difficult, because most of them are not tariffs and do not show up in a price list. Economists estimate them indirectly, by comparing how much trade happens inside a province with how much crosses provincial lines, after allowing for distance and the size of the economies involved.

Two estimates are widely cited:

• A Statistics Canada research paper published in 2017, using data for 2004 to 2012, estimated that the effect of provincial borders on trade in goods was equivalent to a tariff of about 6.9 per cent when measured across smaller regions inside provinces. Statistics Canada was careful to say the figure captures many things beyond government regulation, such as business networks and consumer habits.
• An International Monetary Fund working paper published in July 2019 estimated that fully liberalizing internal trade in goods could raise Canada's GDP per capita by about 4 per cent.

Neither figure is specific to food, and neither says how much of the border effect any single rule creates. But they point in the same direction: provincial lines reduce trade by more than distance alone would explain.

Why the barriers persist

If internal barriers are costly, why do they last? The answer is that each one protects something someone values.

Provincial meat inspection keeps small plants viable for local markets, and requiring federal licensing for interprovincial trade gives importing countries a single standard to audit. Supply management's provincial structure supports farm incomes and regional production. Liquor boards return revenue to provincial treasuries and support local wineries and brewers. Removing a barrier creates winners, often consumers and efficient firms elsewhere, and losers who are concentrated and well organized.

There is also a federal question. Food safety, agriculture and trade are shared between Ottawa and the provinces under the constitution. No single government can clear the field alone, which is why progress comes through negotiated tables and working groups rather than one sweeping law.

For a reader trying to weigh any new proposal, the most useful test is specific: which rule changes, who gains, who bears the cost of adjusting, and whether safety or revenue goals can be met another way. The meat example suggests one practical route that governments have discussed for years, allowing provincially inspected meat to move between provinces that agree their systems meet a common standard. That is narrower than a grand bargain, and more likely to happen. More on trade rules and the disputes around them is collected under trade and markets.