@halcy one that I always feel pretty ambivalent about is the Harding Flash Pattern Analyser for photosensitive epilepsy risk mitigation in broadcast media. the requirements are open and fairly simple, but to actually check your media you have to buy or rent this stupidly expensive box made by one company who owns the patents. someone made a freeware tool that can risk-check your video files but it's less rigorous and it isn't considered sufficiently rigorous for actual broadcast.