Scope 3 is part of the complete Bilan Carbone®. For an SME, allow €10,000 to €30,000 excl. VAT depending on complexity, including everything (scopes 1, 2, 3 + action plan). With Diag Décarbon'Action, the cost payable by the company falls to €6,000 excl. VAT. An assessment covering only scopes 1 and 2 costs less but measures only 10 to 20% of your actual footprint.
Read the source article: Scope 3: definition, 15 categories and calculation method