In capital-intensive industries, few documents carry more weight than the AFE. It is the formal record of why a capital commitment was made, under what assumptions, and what was expected to follow. It is also one of the most inconsistently managed documents in most organizations.

Understanding what an AFE is, how the approval process works, and what happens when AFE governance breaks down is foundational for any finance or capital projects team managing significant capital programs.

What Does AFE Stand For?

AFE stands for Authority for Expenditure, though the term Authorization for Expenditure is also widely used and refers to the same document. In some industries and organizations, equivalent documents go by other names: Capital Expenditure Authorization (CEA), Capital Appropriation Request (CAR), or Capital Expenditure Request (CER). The governance function is identical regardless of the terminology.

The AFE is most formally defined and most consistently applied in mining and oil and gas, where capital programs involve large, long-duration investments across multiple sites and jurisdictions. In these industries, the AFE is not simply a budget document. It is the governance record for a specific capital decision: who approved it, under what authority, based on what assumptions, and with what expected return.

What Industries Use AFEs?

AFEs are standard practice across asset-intensive industries where capital commitments are significant and the consequences of poor governance compound over time.

Mining. The AFE is central to how mining organizations govern capital across exploration, development, sustaining, and growth programs. Mining AFEs must account for Life of Mine planning horizons of 30 to 60 or more years, multi-site operations across jurisdictions, commodity price assumptions that can shift materially during execution, and regulatory reporting requirements that vary by geography.

Oil and gas. AFEs in oil and gas govern drilling, completions, well interventions, facility construction, and decommissioning. In joint venture environments, the AFE is the mechanism by which operators notify and seek approval from working interest partners before committing funds to specific activities.

Energy and utilities. Transmission infrastructure, generation assets, and renewable energy developments all require formal capital approval processes equivalent to AFEs, often under the CEA or CAR nomenclature. Asset lifecycles of 20 to 40 years make governance continuity a particular challenge.

Infrastructure and construction. Large infrastructure programs use capital appropriation processes that mirror the AFE structure, with formal approval workflows, assumption documentation, and post-investment accountability mechanisms.

Manufacturing and industrials. Capital investment in plant, equipment, and facility upgrades typically follows a formal approval process with defined thresholds, sign-off requirements, and expected return criteria.

What Is Included in an AFE?

A well-structured AFE contains several core elements that collectively define the capital commitment and establish the baseline against which actual performance will be measured.

Project description and scope. What the investment is, what it is intended to achieve, and what is included and excluded from the approved commitment.

Cost breakdown. An itemized estimate of all expected expenditures across categories including labor, materials, equipment, engineering, contingency, and any other relevant cost classes.

Financial assumptions. The commodity prices, production volumes, exchange rates, inflation factors, and operating cost projections that underpin the cost estimate and the projected return. These assumptions are the context that makes the AFE legible six months or six years after approval.

Approval authority. The sign-off requirements based on the organization's delegation of authority, defining who must approve the AFE before expenditure can proceed.

Expected timeline. The project schedule, including key milestones, start and completion dates, and any stage-gate checkpoints.

Return on investment or operational outcome. The projected financial return, production impact, cost saving, or other measurable outcome that justifies the capital commitment.

Risk factors. The material risks identified before approval, including execution risk, market risk, regulatory risk, and any assumptions the project team has accepted as conditions of the approval.

In mining specifically, AFEs may also include Life of Mine alignment, environmental and social governance considerations, and regulatory reporting requirements such as Statistics Canada or equivalent jurisdictional frameworks.

How the AFE Approval Process Works

The AFE approval process follows a defined sequence from preparation through to formal sign-off. The specifics vary by organization, but the core stages are consistent across industries.

The project team prepares the AFE, gathering the cost estimates, assumptions, and supporting analysis required to justify the capital request. In mining and oil and gas, this typically involves collaboration across engineering, geology, finance, and operations to ensure the estimate reflects the full scope of the commitment.

The draft AFE moves through a review process that checks for accuracy, completeness, and consistency with prior project documentation. This is the stage at which assumptions are most likely to be challenged and where the quality of the underlying analysis is most visible.

Once reviewed, the AFE proceeds through the formal approval workflow based on the organization's delegation of authority. Projects below a defined threshold may require sign-off from the project manager and finance lead only. Larger commitments typically require senior leadership or Investment Committee approval. The threshold levels and approval sequence should be defined in policy and applied consistently across sites.

Once approved, the AFE becomes the financial and governance baseline for the project. Actual costs are tracked against the approved AFE budget, variances are monitored, and any material change to scope, cost, or assumptions should trigger a formal AFE revision rather than an informal update to a spreadsheet.

At project completion, the AFE serves as the foundation for the post-investment review, providing the documented expectations against which actual outcomes are evaluated.

Why AFE Governance Breaks Down at Portfolio Scale

AFE processes that work well for individual projects tend to fragment when organizations manage 20, 40, or 100 active capital commitments simultaneously across multiple sites.

The first common failure point is inconsistency across sites. When each region or business unit develops its own AFE template, applies its own approval thresholds, and interprets the governance requirements differently, the portfolio becomes ungovernable at the corporate level. Comparing projects across sites requires translation rather than analysis, and the Investment Committee receives data it cannot evaluate on a consistent basis.

The second failure point is assumption fragmentation. AFEs are approved under specific conditions. When those conditions change and the AFE is updated, the original assumptions are rarely preserved in a form that remains accessible later. Six months into execution, no one can explain why the original budget looked the way it did, because the context that justified it no longer exists anywhere in the system.

The third failure point is leadership transition. Mining and energy organizations experience significant turnover at the project management and capital planning level. When a project manager leaves mid-program, the decision context leaves with them. The incoming lead inherits a budget and a spreadsheet. The conditions of the original approval exist only in institutional memory that is no longer accessible.

The fourth failure point is PIR disconnection. By the time the post-investment review occurs, the original AFE assumptions and approval rationale have fragmented to the point where the review team is reconstructing a baseline rather than evaluating outcomes against a documented one. The PIR produces a narrative rather than an accountability assessment.

At portfolio scale, these failure points interact and compound. The organization ends up governing a portfolio it has partially lost track of, not because anyone made a poor decision, but because the governance infrastructure was never designed to preserve AFE context at this level of complexity.

What Effective AFE Governance Looks Like in Practice

Organizations that govern AFEs well share a few structural characteristics that go beyond having a formal approval process in place.

AFE structures are consistent in their governance logic across sites, even when they reflect local operational differences. This means common definitions for cost categories, aligned approval thresholds applied consistently across the portfolio, and shared standards for what must be documented before an AFE can proceed to approval.

Assumptions are preserved, not just at the point of original approval, but traceable through every subsequent forecast revision. When the copper price assumption changes, the original basis is still accessible. When the project scope expands, the original approved scope is still documented. The AFE record reflects the history of the decision, not just its current state.

Approval rationale survives team transitions because it lives in the governance system rather than in someone's memory or inbox. A project manager who joins mid-program can access the original approval context, understand why the commitment was made, and govern the remaining execution accordingly.

Post-investment reviews evaluate actual outcomes against the original documented AFE expectations rather than a reconstructed baseline. This is what makes PIRs useful for organizational learning rather than administrative compliance.

Macmahon Holdings, an ASX-listed mining services contractor, replaced manual spreadsheet-based AFE tracking across its portfolio with a governed capital lifecycle platform. The result was a reduction in the CapEx approval cycle from five to six weeks to under one week and the elimination of manual reconciliation across sites.

A global enterprise mining organization replaced legacy AFE and Exploration Justification systems, unifying growth, sustaining, and exploration capital governance on a single platform across multiple international sites with standardized AFE workflows across all jurisdictions. The full implementation was completed in 4.5 months.