The campaign says a so-called "nudity rider" or "simulated sex waiver" should be in place before filming begins.
Luther actress Ruth Wilson is among those to welcome the initiative.
"Everyone deserves to feel safe at work and these [guidelines] offer a huge step towards that becoming a reality," the His Dark Materials star said.
Riders are conditions or provisos added to something already agreed, like a contract of employment or a job offer.
Bond actress Naomie Harris also backed guidelines she said would "help arm people with the resources and information needed to determine the best path forward".
Time's Up was established in 2018 by members of the entertainment industry including Shonda Rhimes, Natalie Portman and America Ferrera to protest against sexual misconduct in the entertainment industry.
Ita O'Brien, founder of Intimacy On Set , said she wanted it to be "standard practice" to have an intimacy coordinator present at auditions.
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