Those include two new Test Guidelines on in vitro methods for fish hepatic clearance (TG 319A and TG 319B) that can be used to improve in silico predictions of the test chemical bioaccumulation in fish.

Important updates to existing Test Guidelines encompass the inclusion of endocrine-related endpoints in TG 408 (90-d repeated dose toxicity study) and TG 414 (Developmental toxicity study); also Test Guidelines in the area of eye irritation and skin sensitisation have been revised to either improve predictivity of the existing method (TG 438 – isolated chicken eye method) or include similar methods to those already existing (me-too methods in TG 442B, TG 442D, TG 492) ensuring more readily usable practical matter by members and Mutual Acceptance of Data (MAD) adhering countries.

Further information can be found on OECD website.