BidCarbon Units
BidCarbon Units are units used to represent and facilitate the measurement and trading of verified greenhouse gas emission reductions and removals on a global scale. BidCarbon Units comprise BidCarbon Removal Units (BRUs) and Non-Asset BidCarbon Removal Units (NABRUs).
Last updated 26 June 2026
About BidCarbon Units
BidCarbon Units are units used to represent verified greenhouse gas emissions reductions and removals and to facilitate their trading on the carbon market.
BidCarbon Units comprise two types of units:
● BidCarbon Removal Units (BRUs); and
● Non-Asset BidCarbon Removal Units (NABRUs).
Each BidCarbon Unit represents one tonne of carbon dioxide equivalent (tCO₂-e) of greenhouse gas emissions abated or sequestered.
BRUs and NABRUs are distinct types of BidCarbon Units and have different legal and accounting characteristics. A NABRU does not replace or substitute for a BRU.
A Carbon Data Rights Certificate (CDRC) may be issued in relation tomany eligible BidCarbon Units. A NABRU may be traded or transferred without the need to apply for a CDRC.
BidCarbon Unit attributes in the Registry
Method
Pyrogenic Carbon Capture and Storage in Agricultural Systems
BidCarbon Standard Scheme method under which the project generated abatement
BRU=BidCarbon Removal Unit
NABRU=Non-Asset BidCarbon Removal Unit
BidCarbon Unit Type
BRU
Serialised identification number for the BRU. Groups of BRUs are issued in blocks – the serial range shows the first and last serial number held by BRUs in the block of units
Serial range
2025-CN-BSS123456-BRU-L1155-0-236
Attribute
Definition
Example
2025-01-04
Date the unit was issued
Issuance date
CN
Host country
Two-letter country codes in ISO3166, as of 01 January 2005
Year in which the unit was issued
2025
Vintage
Type of project
Agriculture
Method type
Name of the project
Project name
Project ABC
BSS123456
ID number of the project
Project ID
Each BidCarbon Unit is cryptographically anchored to a blockchain, with its unique identifier permanently recorded as evidence of data integrity. Within the Registry, BidCarbon Units can be viewed and filtered by relevant attributes.
Carbon Data Rights Certificates
Learn about the BidCarbon Marketplace and open market where you can sell and trade all the BidCarbon Removal Units in your Carbon Data Rights Certificates.
Voluntary offsetting
BidCarbon Removal Units are used to measure and trade greenhouse gas emissions globally. Learn more about purchasing and cancel BidCarbon Removal Units, when you aren't legally required to do so.
Carbon credits
Learn about our markets, carbon credits, and supply and demand.
Learn more
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