This legislation was signed into law by President Joe Biden late last month and it replaces a stipulation from 1938 that called for potential drugs be tested for safety and efficacy in animals.

Some drug companies have also been critical of animal testing in the past due to costs associated with it.

“FDA is working to replace, reduce, and refine (the 3 Rs) dependence on animal studies by advancing development of, and evaluating new, fit-for-purpose non-clinical tools, standards, and approaches that may someday improve predictability.”

https://www.audacy.com/wwjnewsradio/news/national/animal-testing-no-longer-needed-before-human-drug-trials