The targeted review of internal models (TRIM) is a large-scale project conducted by the ECB in close cooperation with the NCAs over 2016-2020. Its aim is to reduce inconsistencies and unwarranted variability when banks use internal models to calculate their risk-weighted assets.
TRIM combines detailed methodological work (the ECB Guide to internal models was published as a result of it) with the execution of about 200 on-site IMIs.
Information on the project has been shared with the banks involved on a regular basis. Interim updates on the outcome of TRIM investigations have also been published: