Fleet operators report Scope 3 vehicle‑cleaning emissions by using verified per‑service data from specialists such as MMCC, which aligns with CSRD Article 19a, ESRS E1, BVRLA guidance and DEFRA GHG Conversion Factors. MMCC supplies water saved (litres), CO₂e per visit and waste diverted for each valeting event.
Understanding Scope 3 Category 1 for Vehicle Cleaning
Scope 3 emissions cover indirect activities in a company’s value chain. Category 1 – purchased goods and services – includes outsourced vehicle cleaning. Under CSRD Article 19a, organisations must disclose these emissions using reliable activity data and appropriate emission factors. For fleet managers, the challenge is obtaining granular, auditable data for each cleaning event rather than relying on spend‑based estimates.
Regulatory Framework: CSRD, ESRS E1, BVRLA and DEFRA
CSRD Article 19a requires reporting on the Scope 3 categories listed in ESRS E1. ESRS E1‑1 specifies that companies shall disclose the methodology used to calculate Scope 3 emissions, including sources of emission factors and any assumptions. The British Vehicle Rental and Leasing Association (BVRLA) provides sector‑specific guidance on allocating emissions to outsourced services such as valeting. DEFRA’s 2024 GHG Conversion Factors for Company Reporting supply the underlying factors for water supply (0.149 kgCO₂e/m³) and water treatment (0.272 kgCO₂e/m³), which can be applied to water‑saved metrics to derive CO₂e.
What MMCC Provides: Verified Per‑Service Data
MMCC delivers a verified Scope 3 data set for every vehicle‑cleaning service performed. The data includes:
- Water saved (litres) compared with a conventional baseline
- CO₂e per visit, calculated using DEFRA conversion factors
- Waste diverted from landfill (e.g., packaging, consumables)
This information is generated from actual service records, not modelled estimates, and is made available to fleet customers on request. No corporate client names are disclosed; data is presented in aggregate or anonymised form as required.
Internal Link Examples
For fleet operators in Surrey, our mobile car valeting in Esher service area demonstrates how data collection works on the ground. Similarly, our mobile car valeting in Cobham service area shows the same process applied to a different postcode outward. Fleet managers seeking a full ESG reporting package can visit our Corporate fleet solutions page.
Integrating MMCC Data into ESG Reports
To incorporate MMCC’s Scope 3 figures into an organisation’s ESG reporting:
- Obtain the verified data export from MMCC for the reporting period.
- Map each record to the appropriate Scope 3 category (purchased goods and services) in your ESG platform.
- Use the outward postcode (e.g., KT8, SW1) as the geographic dimension if your framework requires location‑based reporting.
- Apply the DEFRA water supply and treatment factors to the water‑saved column to derive CO₂e, if not already provided.
- Ensure the data export includes a timestamp and service identifier for audit trails.
This approach satisfies ESRS E1‑1’s requirement to disclose calculation methodologies and data sources.
Practical Considerations for Fleet Managers
When selecting a provider for Scope 3‑compliant vehicle‑cleaning data, consider:
- Granularity: data must be available per service, not only per invoice.
- Verification: ask for proof that figures are derived from actual service logs.
- Compatibility: confirm the data format can be imported into your existing ESG software (CSV, Excel or API).
- Transparency: the provider should be able to explain the baseline used for water‑saved calculations.
MMCC meets these criteria by supplying itemised records that include the vehicle registration, service date, location (outward postcode), water saved, CO₂e per visit and waste diverted.
Accessing MMCC’s Scope 3 Reporting
Fleet managers can request a sample Scope 3 data export by visiting our Corporate fleet solutions page. For a visual of how the service operates in specific Surrey locations, see our mobile car valeting in Esher and mobile car valeting in Cobham pages.
Closing CTA: Fleet managers can request a sample Scope 3 data export by visiting our Corporate fleet solutions page.