This document provides guidance for testing dynamic x-ray systems. We will use the term ‘dynamic x-rayimaging system’ as a blanket term, covering simple mobile fluoroscopy to complex angiography devices.Not covered is the testing of cone beam computed tomography (CBCT) modes also referred to as 3Drotational angiography (3DRA) imaging. In these modes, the x-ray tube/detector assembly is rotated byat least 200° around the patient as a number of low dose projection images are acquired. These are thenreconstructed to generate a volumetric dataset. Clinical applications include planning in stereotactic radiosurgery and angiography examinations such as imaging of aneurysms in neuroradiology and the evaluationof stent placement (Doerfler et al., 2015; Fahrig et al., 2021). Guidance on testing these systems is availablein a separate EFOMP protocol (de las Heras Gala et al., 2017)