The Bank for International Settlements Committee on Payments and Market Infrastructures (CPMI) published a brief presenting results from the 2024 CPMI and Financial Stability Board cross-border payments monitoring survey of central banks, tracking progress against the G20 Roadmap on payment system interoperability and extension, data exchange and message standards, and legal and regulatory frameworks. The findings point to uneven advances across systems and regions, with operating hours broadly stable year on year but increasing interest in 24/7 operations and the Asia-Pacific region leading on interlinking arrangements. The survey shows continued progress in adopting ISO 20022 messaging standards and the use of application programming interfaces (APIs), with many payment systems already processing or planning to adopt ISO 20022 and incorporating APIs for data exchange. It also finds that numerous jurisdictions are implementing or planning legal and regulatory reforms to expand payment system access for non-bank payment service providers and strengthen data privacy, alongside risk-based approaches to preventing financial crime and the introduction of digital identifiers for individuals and businesses. Responses were received from 68 central banks, including 49 that also participated in the 2023 survey.