[Summary] Toray Research Center, Inc. (Location: 1-7-2 Nihonbashi-Honcho, Chuo-ku, Tokyo; President: Yoshiki Makabe, hereinafter "TRC") and Toray Techno Co., Ltd. (Location: 1-1-1 Sonoyama, Otsu-shi, Shiga; President: Tsuneyuki Yamane, hereinafter "TTK") have strengthened their one-stop support system, which provides comprehensive services from the design of testing schemes required for new chemical substance applications to test execution and application consulting. This enhancement is in response to the revisions of the Chemical Substances Control Law (CSCL) (Note 1) notifications scheduled for after 2025, achieved through the expansion of specialized personnel and the advancement of know-how to adapt to regulatory changes. This will enable the proposal of optimal testing plans and schedules that comply with regulations, contributing to the reduction of customer application risks, acceleration of product launches, and alleviation of internal workload. [Background] When manufacturing or importing new chemical substances, it is necessary to undergo a prior review of their hazardous properties from the perspective of preventing harm to human health via the environment, based on the CSCL. For low molecular weight compounds, multiple tests are required, including biodegradability, bioaccumulation, ecotoxicity, and genotoxicity. For high molecular weight compounds, however, the polymer flow scheme test is applied as a relatively simple evaluation method, considering their low permeability through biological membranes. This test evaluates stability, solubility, and the content of low molecular weight components to determine the environmental impact of the chemical substance. With the regulatory revisions after 2025, the scope of application for utilizing existing data and omitting tests is expanding, further increasing the importance of designing appropriate testing schemes and application strategies. [Support Details and System Enhancement Points by TRC and TTK (hereina