Public consultations

Explore the results of our public consultations, including feedback summaries and responses that drive improvements in our standards and methodologies.

Open public consultations

Public consultations are open for a minimum of 30 days. All relevant details can be accessed here with the results of these consultations.

There are currently no open public consultations.

Would you like to be notified of future consultations? Please contact us.

Closed public consultations

Document	Start date	Closing date	Useful links
Rainbow Standard Rules V7.0 and Procedures Manual V3.0	November 25th 2025	December 28th 2025	Responses to comments
Enhanced rock weathering	April 3 2025	May 5, 2025	Responses to comments
Mineralization of alkaline materials ex situ	June 20, 2025	July 23, 2025	Responses to comments
BiCRS: Marine sub-sediment burial v1.0	February 7, 2025	March 10, 2025	Responses to comments
Battery second life v1.0	December 4, 2024	January 6, 2025	Responses to comments
Biomass Carbon Removal Storage v1.0	September 12, 2024	October 12, 2024	Responses to comments
Biogas from anaerobic digestion v3.0	May 27, 2024	June 28, 2024	Responses to comments
Electronic device refurbishing v2.0	April 23, 2024	May 24, 2024	Responses to comments
Riverse Standard Rules v6	March 12, 2024	April 12, 2024	Responses to comments
Biobased Construction Materials Methodology v2.0	January 24, 2024	March 1, 2024	Watch the webinar Responses to comments
Riverse Standard Rules for European Greentechs v5	February 1, 2023	March 8, 2023	Watch the webinar Responses to comments

Access all archived versions of Rainbow Standard Documents and methodologies here 👇

Archived documents