The Brain Imaging Data Structure (BIDS) aims to develop a standard for organizing and describing neuroimaging data (https://bids.neuroimaging.io/). It has rapidly gained traction across neuroimaging disciplines through community-driven development of BIDS extension proposals (BEPs; http://bit.ly/bids_bep). Here were present such an extension proposal, that captures a wide range of structural MRI contrasts and parametric mapping protocols that are of interest to the broader ISMRM community (https:/bit.ly/bep001). This abstract reports the current state of the proposal and illustrates the developments made since the 2018 ISMRM virtual meeting Bringing BIDS closer to quantitative MRI.