  As transcranial ultrasound stimulation (TUS) advances as a precise,
non-invasive neuromodulatory method, there is a need for consistent reporting
standards to enable comparison and reproducibility across studies. To this end,
the International Transcranial Ultrasonic Stimulation Safety and Standards
Consortium (ITRUSST) formed a subcommittee of experts across several domains to
review and suggest standardised reporting parameters for low intensity TUS,
resulting in the guide presented here. The scope of the guide is limited to
reporting the ultrasound aspects of a study. The guide and supplementary
material provide a simple checklist covering the reporting of: (1) the
transducer and drive system, (2) the drive system settings, (3) the free field
acoustic parameters, (4) the pulse timing parameters, (5) \emph{in situ}
estimates of exposure parameters in the brain, and (6) intensity parameters.
Detailed explanations for each of the parameters, including discussions on
assumptions, measurements, and calculations, are also provided.
