Understanding Your Supply Chain’s Climate Impact (Scope 3)
For most organizations, over 70% of total emissions occur within the supply chain — specifically under Scope 3 purchased goods and services. Supplier Carbon Footprint Audits provide the assurance needed to quantify and manage these indirect emissions with accuracy and credibility.
BQCIS auditors review supplier GHG data collection, calculation methods, and reporting systems against globally recognized standards like ISO 14064-1 and the GHG Protocol. Audits verify boundaries, emission factors, and activity data related to energy use, materials, transportation, and waste.
Verified supplier emissions data strengthens your organization’s Scope 3 accounting, enhances transparency for ESG disclosures, and identifies collaboration opportunities for decarbonizing your value chain.
Key Supplier GHG Audit Activities
Key Benefits of Supplier Carbon Audits
Accurate Scope 3 Reporting
Enables the use of verified primary data instead of industry averages, improving precision in Scope 3 disclosures.
Identify Supply Chain Hotspots
Highlights suppliers and activities with the highest emissions intensity, guiding prioritization for decarbonization.
Drive Supplier Engagement
Encourages suppliers to establish their own GHG monitoring, fostering collaboration and data transparency across the chain.
Support Science-Based Targets
Provides verifiable baseline data essential for setting and tracking progress toward SBTi-approved reduction goals.
Success Story
Supplier Carbon Audits Strengthen Scope 3 Baseline
A global manufacturer required verified emissions data from its top 15 suppliers to establish an accurate baseline for its Science-Based Target initiative (SBTi) submission.
BQCIS conducted GHG verification audits of each supplier’s carbon inventory, reviewing activity data, emission factors, and methodological alignment with the GHG Protocol and ISO 14064-1.
Verified data improved the client’s Scope 3 accuracy by 46%, enabling transparent disclosure and achieving SBTi validation. Supplier collaboration further drove emission reduction commitments.