Old-Growth Protection Policies in Canada

Canada holds roughly 347 million hectares of forest, more than any other country except Russia. A fraction of that total — concentrated in British Columbia, parts of Ontario, and the boreal fringes — consists of old-growth stands. These are forests that have developed over centuries without large-scale disturbance: fires, floods, and small-scale windthrow events have shaped them, but industrial logging has not. What remains is the subject of some of the most contentious environmental policy debates in Canadian history.

Defining Old Growth in a Canadian Context

There is no single federal definition of old-growth forest in Canada. British Columbia uses a stand-age threshold that varies by biogeoclimatic zone — in coastal Douglas fir zones, old growth is typically defined as stands older than 250 years; in drier interior zones the threshold drops to 140 years. The variation reflects genuine ecological differences: a 200-year-old interior pine stand and a 200-year-old Sitka spruce stand on the coast are structurally and functionally quite different ecosystems.

The 2020 Old Growth Strategic Review commissioned by the BC government marked a shift in how the province characterises its remaining old growth. The panel's report, authored by foresters Garry Merkel and Al Gorley, concluded that roughly 2.6 million hectares of the most ecologically at-risk old growth remained in BC — a number substantially lower than earlier government inventories suggested, because it excluded forests already managed under partial-cut systems and those in early stages of succession following fire.

British Columbia's Regulatory Framework

Forest management in BC operates primarily under the Forest and Range Practices Act (FRPA) and the Forest Practices Code, which preceded it. Neither statute historically provided categorical protection for old-growth forests as a class. Instead, protection has operated through a patchwork of instruments:

• Old Growth Management Areas (OGMAs): Spatially defined zones within timber supply areas where logging is prohibited or constrained. OGMAs are established through higher-level plans and are not always legally binding.
• Wildlife Habitat Areas (WHAs): Established under FRPA to protect habitat for species at risk, including marbled murrelet and spotted owl, which depend on old-growth structural characteristics.
• Harvest deferrals: Following the Old Growth Strategic Review, the BC government announced in 2021 that it would defer logging on approximately 2.6 million hectares of the highest-risk old growth, pending the development of a longer-term strategy. Implementation has been contested, with First Nations holding varying positions on whether and how to accept deferrals within their territories.
• Old Growth Order: In 2023, the BC government issued an order under the Forest Act converting selected deferral areas to legally binding restrictions. The scope of that order, and how it interacts with existing cutting authorities, remains the subject of litigation and ongoing negotiation.

Federal Involvement

Forestry is constitutionally a provincial matter in Canada, which limits the federal government's direct role. The federal government's primary lever is the Species at Risk Act (SARA), which can require habitat protection for listed species regardless of provincial land management decisions. In practice, federal-provincial negotiations under SARA tend to produce memoranda of understanding rather than unilateral federal interventions, though the threat of federal action has influenced some BC forest management decisions.

The federal government has also committed under its 2030 Emissions Reduction Plan to accounting for forest carbon more carefully in national greenhouse gas inventories. Old-growth forests store disproportionately large amounts of carbon per hectare compared to second growth, which creates an indirect federal interest in their retention.

How Much Old Growth Remains

Estimates vary depending on definition, but the BC government's own data suggests that old growth once covered the majority of the province's productive forest land. By the early 2020s, that figure had dropped to roughly 13% of the original extent in the most ecologically productive zones. In the coastal temperate rainforest — the ecosystem type most commonly associated with the public image of BC old growth — the remaining undisturbed fraction is smaller still.

The Ancient Forest Alliance and other non-government organisations document and map remaining old growth using provincial inventory data. Their analyses generally show a steeper decline than provincial figures, partly because they apply stricter stand-age and structural-complexity criteria.

First Nations and Old-Growth Decision-Making

Since the Supreme Court of Canada's 2014 decision in Tsilhqot'in Nation v. British Columbia, the legal landscape for forest management on unceded Indigenous territory has shifted substantially. The ruling confirmed that Aboriginal title exists and that the Crown must obtain consent — not merely consult — for uses of title lands that are not in the national interest. Much of BC's remaining old growth sits on unceded territory.

In practice, the effect has been uneven. Some First Nations have entered into co-management agreements that give them direct say over harvest deferrals and protected area designations. Others have negotiated revenue-sharing arrangements with logging companies that create economic incentives aligned with continued harvest. The deferral negotiations following the 2021 announcement illustrated the range: some nations accepted deferrals as consistent with their own stewardship values; others rejected them as an imposition that bypassed their jurisdictional authority.

What the Policy Debate Looks Like in Practice

The practical tension in old-growth policy is between ecological urgency and economic transition. For communities in BC's interior, the forest sector remains the primary employer. The argument made by industry and some First Nations is that harvest deferrals, without replacement economic activity, effectively transfer wealth from resource-dependent communities to urban populations who consume the forest's existence value at no personal cost.

The counter-argument, advanced by conservation scientists and some First Nations, is that the irreversibility of old-growth loss means that economic transition cannot be deferred indefinitely: once a 500-year-old stand is logged, no foreseeable policy can restore it within any human planning horizon. The policy instruments currently in place — deferrals, OGMAs, WHAs — are described by their proponents as a pause to allow that transition, not a permanent end to harvest in old-growth areas.

Key External Sources

• BC Ministry of Forests — Old Growth Forests
• Natural Resources Canada — State of Canada's Forests
• Species at Risk Act — Justice Canada