Canadian Free Trade Agreement (CFTA)

CFTA replaced the 1995 Agreement on Internal Trade (AIT), which had been the previous federal-provincial framework for reducing interprovincial trade barriers. The agreement covers four core areas: trade in goods and services, government procurement, investment, and labour mobility. It includes dispute-resolution procedures and a Regulatory Reconciliation and Cooperation Table that attempts to harmonize regulations across provinces.

The structural difference between CFTA and the AIT it replaced is the negative-list approach. AIT was a positive list: only sectors specifically listed were covered. CFTA inverts that: its rules apply automatically to nearly all areas of economic activity in Canada, with any exclusions scheduled as exceptions by each party. The default is free trade. The exceptions list defines what is not.

On paper, the agreement covers most domestic economic activity. In practice, its bite depends on that exceptions schedule. Each province and territory negotiated a list of exceptions when CFTA was signed, and those exceptions exempt specific sectors and procurement from the agreement's general obligations.

The largest economic costs of internal trade barriers in Canada are the unglamorous structural ones, and most of them survived CFTA either as exceptions or as areas where the agreement's commitments lack enforcement.

Mutual recognition of professional credentials remains uneven. An Ontario nurse cannot automatically practice in Quebec without re-credentialing. A New Brunswick electrician cannot automatically work in Alberta. Each province maintains its own occupational licensing regime. Procurement preferences tilt provincial contracts toward in-province bidders, and most provinces used CFTA's procurement exceptions liberally. Building codes, electrical codes, and technical standards differ across provinces, and a modular home built to Alberta code cannot necessarily be installed in British Columbia without modification. Trucking operates under different provincial rules on weight, length, hours of service, and licensing. Agricultural marketing operates under provincial supply management for dairy, eggs, and poultry. Alcohol distribution operates under provincial monopolies that the 2018 Supreme Court decision in R v Comeau (2018 SCC 15) left in place: the Court ruled that Section 121 of the Constitution Act, 1867 prohibits laws whose essence and purpose is to restrict interprovincial trade, but does not prohibit laws (like New Brunswick's liquor monopoly) whose primary purpose is to manage in-province supply with merely incidental effects on cross-border movement.

IMF Working Paper 19/158, published in 2019 by Jorge Alvarez, Ivo Krznar, and Trevor Tombe, estimates that fully removing interprovincial trade barriers would add roughly four percent to Canadian GDP. The full range in the paper is three to seven percent, with the central estimate at the midpoint. The estimate has been roughly stable across replication studies.

For context, four percent is approximately the size of the projected GDP impact of CUSMA. The lower bound of the IMF range, three percent, is still larger than what most external trade agreements deliver. Statistics Canada reports interprovincial trade in goods and services at $532 billion for 2023, against international merchandise trade of $1.54 trillion in the same year. By any reasonable metric, Canada trades more with the rest of the world than it does with itself. Australia, Germany, and the United States all show internal trade exceeding international trade. Canadian provinces are unusual on this dimension.

The binding constraint on internal trade reform is political economy, not economics. Each individual barrier protects a constituency: nurses' unions, electricians' unions, dairy farmers, provincial procurement officers, regional manufacturers. Each constituency votes in provincial elections. The benefits of removing a single barrier are diffuse, accruing mostly to consumers and to out-of-province producers who do not vote in the province imposing the barrier.

What could change the political math is bundling. A premier who tries to remove provincial dairy supply management alone gets crushed by the dairy lobby. A premier who, with cover from a federal-provincial first ministers' agreement, removes a basket of barriers in exchange for federal infrastructure spending or tax-point transfers can plausibly survive politically. The 1995 AIT and 2017 CFTA were attempts at this kind of bundle. They underdelivered because the bundle was thin.