This document is intended to present the acceptable means of compliance (AMC) recognised by the SRC as possible harmonised ways to meet ESARR 4 provisions within the ECAC region. The AMCs recognised by SRC are not mandatory. They represent means, or alternative means, but not necessarily the only possible means, by which mandatory provisions established by ESARR 4 can be met under certain identified conditions. Their acceptability has successfully been demonstrated at SRC level as a result of a formal assessment.