Significant opportunities exist to preserve and reuse simulation and analytical models and data. Based on the capabilities developed by the Modelica Association (MA), LOTAR International (Lotar), and other contributing tool developers, multiple engineering and manufacturing industries can compile extensive archives of reusable and interoperable performance, behavior and integrated product information. Through the development and implementation of a preservation plan, the use of compliant off-the shelf software applications, and packaging using compatible data standards, a repository of analytical interactions, simulations and functional prototypes can be archived, maintained, and resourced by future users. This paper identifies progress made since the publication of (Coïc 2021, Coïc 2023) with respect to maturity of the LOTAR draft standards – ASD-STAN 9300 series, (ASD-STAN, 2025) and accompanying prototype implementations. There has also been significant progress on the side of Modelica Association relevant standards with the standardization of layered standards in FMI and SSP (Modelica Association 2024-11., Modelica Association 2024-12), and new versions of both standards. The very recently released layered standard SSP Traceability (Modelica Association 2025-04) provides mechanisms to document and preserve relevant metadata for model archiving – Long Term Archiving and Retrieval (LOTAR). The FMI layered standard FMI-LS-Ref standardizes parameter sets and reference results, which are an important subset of the required LOTAR International archiving data.