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Compliance / Scope 3 Attestation Footnote

Scope 3 Attestation Footnote

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Reference methodology text for citing Habeo as an IT asset lifecycle carbon data source in an annual sustainability, CDP, or SASB report — sources, GHG Protocol category mapping, confidence levels, and stated exclusions.

Scope 3 attestation footnote

Reference text suitable for appendixing to a customer's annual sustainability / Scope 3 / CDP / SASB report. Cite Habeo as a data source; document the methodology + limitations explicitly.

IT asset lifecycle carbon — methodology

Lifecycle carbon estimates for the institution's IT asset inventory were produced using Habeo, a higher-education IT asset management platform. Each estimate decomposes into three components:

  • Embodied carbon (one-time) — manufacturing, raw materials, and transport. Sourced from manufacturer-disclosed Product Carbon Footprint documents (Apple, Dell, HP, Lenovo, Microsoft, Cisco) where available; published Life Cycle Assessments from Boavizta and ENERGY STAR otherwise; category averages as a low-confidence fallback. Refurbished-at-purchase assets are prorated to 50% embodied attribution.

  • Annual use carbon (recurring) — modeled as power draw (W) × annual use hours × regional grid intensity (kg CO2e/kWh). Power draw from the same source hierarchy as embodied. Grid intensity from EPA eGRID 2024 subregional data for U.S. campuses; IEA national averages for international campuses. Annual use hours default by asset type (e.g., 2,080 for laptops representing 8h × 260 weekdays; 8,760 for 24×7 servers).

  • End-of-life adjustment — posted at asset disposition through Habeo's surplus disposal workflow. Reuse / resale / donation pathways receive a residual-life-prorated 50% credit; recycle receives a 10% material-recovery credit; destruction and return-to-agency receive zero credit.

GHG Protocol mapping: estimates support Scope 3 reporting under the following categories: Category 5 (Waste generated in operations — disposed IT assets), Category 8 (Upstream leased assets — for assets with ownership_kind = "leased"), and Category 11 (Use of sold products, inverted application — power consumed by purchased equipment).

Confidence levels are tagged per estimate: high (manufacturer-disclosed LCA), medium (published LCA study for the category), or low (category average). Detailed source documentation is available in the institutional carbon DB at the per-asset level.

Limitations and exclusions:

  • Numbers are estimates, not direct measurements. Audit-quality reporting requires third-party verification.
  • BYOD devices are excluded (ambiguous attribution between org-owned and personal energy use).
  • SaaS-embedded carbon is excluded pending standardized disclosure from cloud providers.
  • Scope 1 (direct emissions) and Scope 2 (purchased electricity) are out of the IT asset platform's scope.
  • Grid intensity values reflect prior-year averages and lag actual generation mix.

Generated by Habeo on {{ generationDate }}. See usehabeo.com/compliance/scope-3-attestation for the current methodology document.

Use this text verbatim or adapt it. Habeo does not represent the report as audited unless your institution engages an independent third-party verifier.