CBSAs CARM Newsletter Provides Critical Updates for Inbound Supply Chain Partners Thursday March 06, 2025 | Border & Customs CBSA’s CARM: Did You Know? Newsletter from March 5, 2025 provides important updates with respect to forthcoming requirements for importers to enroll in CBSA’s Release-Prior-to-Payment (RPP) and post financial security if they want to benefit from electronic release service options.