A California Carbon Dioxide Storage Unit Agreement is a legally binding agreement between a carbon dioxide (CO2) storage unit operator and the California Air Resources Board (CARB) that regulates the storage and monitoring of CO2 emissions from industrial sources. This agreement is an important component of California's efforts to reduce greenhouse gas (GHG) emissions and combat climate change. The primary objective of a California Carbon Dioxide Storage Unit Agreement is to establish a framework for the safe and effective underground storage of CO2, ensuring that it does not contribute to global warming and remains securely contained. These agreements typically include provisions related to the development, operation, and closure of CO2 storage units, while also addressing monitoring, risk assessment, and liability provisions. One of the main types of California Carbon Dioxide Storage Unit Agreements is known as the "Monitoring, Reporting, and Verification (MR) Agreement." This particular agreement focuses on ensuring accurate measurement, reporting, and verification of CO2 emissions and storage. It outlines the requirements for data monitoring, regular reporting, and third-party verification procedures to ensure compliance with emission reduction targets and regulatory standards. Another type of California Carbon Dioxide Storage Unit Agreement is the "Risk Assessment and Liability Agreement," which is designed to assess and mitigate potential risks associated with underground storage of CO2. It establishes guidelines for risk assessment methodologies and outlines liability provisions in case of any incidents, such as leaks or failures, thereby holding the storage unit operator responsible for any damages or environmental consequences that may arise. Moreover, the "Closure and Post-Closure Monitoring Agreement" is another type of agreement that focuses on the proper closure and monitoring of CO2 storage units once they are no longer in use. It includes requirements for decommissioning, site remediation, long-term monitoring, and addressing any potential post-closure issues, ensuring the long-term safety and containment of stored CO2. Overall, California Carbon Dioxide Storage Unit Agreements play a crucial role in regulating and overseeing the storage of CO2 emissions. Through implementation and enforcement, these agreements help California in achieving its ambitious emission reduction goals and advancing towards a more sustainable and cleaner future.