This document identifies consistencies and differences between the requirements published in the EUROCONTROL safety regulatory requirements developed in the ESARRs and those published in ICAO SARPS. Its main objective is to prove that the relevant requirements and recommended practices published in Annex 11 and Annex 13 are adequately covered within the ESARRs. More specifically, the compliance check lists at Appendix B should assist States with their preparation for USOAP. A secondary objective is to develop the rationale why, for certain requirements, it is necessary to expand on the ICAO SARPS.