On September 23, 2025, the United States Federal Aviation Administration (FAA) and the Civil Aviation Authority of Singapore (CAAS) signed an updated Bilateral Aviation Safety Agreement–Implementation Procedures for Airworthiness (BASA-IPA) at the International Civil Aviation Organization’s 42nd Assembly. FAA Administrator Bryan Bedford and CAAS Director-General Han Kok Juan formalized the agreement.
The new agreement aims to simplify the validation process for certain aircraft modification designs between both agencies. Under this enhanced arrangement, the FAA will now accept CAAS approvals for minor aircraft modifications, all aircraft repairs, and minor changes to article designs.
“This agreement underscores a significant step forward in our efforts with CAAS. By streamlining regulatory processes while maintaining the highest standards of safety, we’re strengthening global aviation partnerships and fostering innovation for the aerospace industry worldwide,” said Administrator Bryan Bedford.
Director-General Han Kok Juan stated, “The expansion of the CAAS-FAA mutual recognition agreement is a testament to our close partnership and the trust and confidence and marks a new milestone in Singapore-US aviation cooperation. It will significantly benefit Singapore-based companies which require U.S.’s approval, or whose customers require the U.S.’s approval, for their work.”
The FAA and CAAS have maintained a BASA-IPA since 2007. The latest update follows a joint review by both organizations that included FAA site visits to aviation and aerospace companies based in Singapore.