How to Build a Scope 3 Contractor Compliance Checklist for Your FM Program

Scope 3 compliance for facility managers is fundamentally a vendor management problem. You cannot calculate your Category 1 emissions without data from your contractors, and you cannot get data from contractors without a systematic process for requesting, receiving, and storing it. This article provides a practical checklist for building that process — one that works for FM teams of any size and scales as your contractor pool grows.

Phase 1: Vendor Inventory and Prioritization

Before you can build a Scope 3 data collection process, you need to know which contractors generate material emissions on your behalf. Not all vendors are equal Scope 3 risks — prioritize based on emission intensity and spend.

Step 1: Map your contractor categories

List every category of contractor your FM program engages. For most corporate FM teams, the highest emission-intensity contractor categories are:

• Emergency restoration (water, fire, mold, hazmat) — diesel-heavy equipment, waste streams, episodic but high-intensity
• Construction and tenant improvements — embodied carbon in materials, significant waste
• HVAC maintenance and retrofits — refrigerant handling, combustion equipment
• Grounds and landscaping — fuel-burning equipment, fertilizer (N₂O emissions)
• Janitorial and facility services — lower intensity but high volume

Step 2: Score by emission intensity × annual spend

Multiply each category’s estimated emission intensity (high/medium/low) by your annual spend in that category. The highest-scoring categories are your priority Scope 3 data gaps. Emergency restoration typically scores high on intensity even when annual spend is variable, because a single large water damage event can generate a meaningful emissions figure.

Phase 2: Vendor Qualification Updates

Step 3: Add Scope 3 capability questions to RFP and vendor qualification forms

For new vendor solicitations, add the following questions to your qualification criteria:

• Does your organization track greenhouse gas emissions associated with individual project work?
• Are you familiar with GHG Protocol Scope 3 Category 1 methodology?
• Have you adopted the Restoration Carbon Protocol (for restoration vendors)?
• Can you provide a per-project emissions summary upon project completion?
• What job management system do you use, and does it support emissions data export?

Step 4: Tier your existing vendors

Survey your existing contractor pool with the same questions. Categorize vendors into three tiers: Tier 1 (already tracking emissions data), Tier 2 (willing to adopt a framework with support), and Tier 3 (unable or unwilling to provide data). Tier 3 vendors become a procurement risk factor — flag for transition to Tier 1 or 2 alternatives at contract renewal.

Phase 3: Contract Language

Step 5: Add Scope 3 data provisions to new contracts

For restoration contractors specifically, reference the Restoration Carbon Protocol as the accepted methodology standard. For other contractor categories, reference GHG Protocol Scope 3 Category 1 methodology and specify the data fields required. Include:

• Obligation to provide a per-project emissions summary within 30 days of completion
• Minimum data fields required (fuel, vehicle miles, waste type and weight, equipment hours)
• Accepted methodology standard (RCP for restoration; GHG Protocol Category 1 for others)
• Data format and delivery method (PDF report, CSV, or API-compatible format)
• Right to audit contractor data collection processes during the contract term

Phase 4: Data Collection and Storage

Step 6: Establish a receiving process for contractor emissions reports

Decide where contractor emissions data will live in your FM systems. Options include: a dedicated folder in your CMMS work order system attached to each job record, a shared ESG data repository managed by your sustainability team, or a direct integration with your ESG reporting platform. The key is that every restoration job has an associated emissions record — not a separate tracking system you have to reconcile at year-end.

Step 7: Build a gap-filling protocol for missing data

Some contractors will not provide data even after you request it. Build a proxy calculation protocol for data gaps using spend-based or activity-based estimation. The RCP provides proxy tables for restoration jobs. For other categories, the GHG Protocol’s Scope 3 Calculation Guidance provides spend-based emission factors you can apply to invoice data.

Phase 5: ESG Inventory Integration

Step 8: Integrate contractor data into your annual Scope 3 Category 1 calculation

At the end of each fiscal year, compile all contractor emissions reports and proxy estimates into your Scope 3 Category 1 input. Document your methodology, note which vendors provided primary data and which required proxy estimation, and flag any material gaps for disclosure in your ESG report. Most third-party ESG auditors will accept a documented methodology with known limitations more readily than an unexplained data gap.

The Checklist Summary

• ☐ Map contractor categories by emission intensity and annual spend
• ☐ Score and prioritize: emergency restoration at the top
• ☐ Add Scope 3 capability questions to vendor qualification forms
• ☐ Tier existing vendors (1=tracking, 2=willing, 3=unable)
• ☐ Add Scope 3 data provision clause to new contracts (reference RCP for restoration)
• ☐ Establish data receiving process in your CMMS or ESG platform
• ☐ Build proxy protocol for data gaps
• ☐ Integrate into annual Scope 3 Category 1 calculation with documented methodology

Part of the IFMA Scope 3 series on tygartmedia.com.