The new test method JESD22-B110 provides guidance for in-situ testing of mechanical shock resistance of components as mounted in a subassembly. Using terms, procedures, and test levels in common with JESD22-B104B, this test method provides a range of test level options to improve test applicability and compatibility with fragility test procedures. Test procedures are detailed, including test card and fixture needs, test tolerances, test documentation, component preparation, and definition of terms.