A framework of Storage Readiness Levels (SRLs) is presented to communicate the entirety of technical appraisal, permitting and planning activities achieved at a potential CO₂ storage site and what remains to be completed for CO₂ storage operations. The schema, based on learning gained from the experience of researchers, regulators and industry from the 1990s, is described and assessed by application to 742 saline formation and hydrocarbon field sites, offshore the UK, Norway and The Netherlands. The framework is flexible to accommodate national differences in procedures and practise and the unique character of each site. It is applicable regardless of the time-scale of appraisal or scale of assessment. The framework is consistent with and extends the industry commercial project development classification to include categories for sites with a lesser level of data and evaluation. Application to the phases of appraisal of three sites illustrates that investigations may advance understanding by different pathways and rates. The standardised framework enables comparison of the experience of permitting and planning activities completed within different jurisdictions, the level of investment and the duration required to achieve permitted or permit-ready sites. It is intended that the framework of SRLs should be widely applied.

储存战备完好等级（SRLS）的框架，提出技术鉴定的整体沟通，审批和规划活动在可能的共同实现₂存储站点，哪些还有待完成CO ₂存储操作。该方案基于从 1990 年代研究人员、监管机构和行业的经验中获得的经验，通过应用于英国、挪威和荷兰近海的 742 个盐层和油气田站点进行描述和评估。该框架是灵活的，以适应程序和实践方面的国家差异以及每个站点的独特特征。无论评估的时间尺度或评估尺度如何，它都适用。该框架与行业商业项目开发分类一致并扩展到包括数据和评估水平较低的站点类别。三个地点的评估阶段的应用表明，调查可以通过不同的途径和比率来促进理解。标准化框架可以比较在不同司法管辖区完成的许可和规划活动的经验、投资水平以及实现许可或准备就绪的地点所需的持续时间。旨在广泛应用 SRL 的框架。