The RCAF is a standardised approach developed by RSSB to improve carbon accounting and reporting in rail. It sets out methods for organisations to consistently collect, collate, and report greenhouse gas (GHG) emissions data. The framework is addresses inconsistencies, improves transparency, and provides a unified approach to carbon accounting across the sector. The suite of documents also offers guidance on setting targets and calculating eductions.

How using the RCAF helps your organisation

  • Focus on annual reporting: The RCAF emphasises annual GHG reporting for rail organisations, covering Scope 1, 2, and 3 emissions. 
  • More accounting methods: It offers new ways for calculating emissions of journeys, products, services, and avoided, Scope 4, emissions. 
  • Sector-specific guidance: It provides tailored guidance for rail-specific issues. For example, traction energy emissions, rolling stock maintenance, and embodied carbon. 
  • Data flow improvement: The framework aims to enhance data sharing and flow between rail organisations. This will reduce duplication and improve accuracy. 
  • Support for net zero goals: It provides guidance on setting targets and calculating reductions aligning with the Sustainable Rail Blueprint and Science-Based Targets Initiative.
  • Flexibility for future changes: The RCAF is designed to adapt to the evolving structure of the UK rail industry, including the formation of Great British Railways. 
  • Alignment with standards: It aligns with the GHG Protocol and ISO 14064 standards to ensure consistency in carbon accounting and reporting. 

Key documents

There are seven documents in the RCAF suite. The three main reports are relevant to all users. They are the Assessment of rail carbon accounting methods, Methods for setting targets and calculating carbon reductions, and Supplementary information. The remaining four offer individual methods for passenger and freight operators, rolling stock companies, and infrastructure managers.