In the run-up to the U.S. vote in November, social media companies like Facebook Inc and Twitter have announced new rules for various post-election scenarios. The companies, which have been criticized by social media researchers and lawmakers over the enforcement of their content policies, have laid out plans for how they will handle candidates claiming victory before results are certified or calls for election-related violence. Here is how major social media companies plan to approach election challenges: FACEBOOK If candidates or campaigns make premature victory claims, Facebook said it will add labels to the content and show notifications in news feeds with information about the state of the race. Posts from presidential candidates contesting the official outcome will also get a label showing the declared winner’s name. The company, which says it removes content and disables accounts when it believes there are risks of physical harm or direct threats to public safety, has also announced crackdowns on militia movements using the platform in recent months. In September, it said it had “break-glass” options to restrict users if the election becomes chaotic or violent. TWITTER Twitter said that it will remove or attach warning labels to any claims of victory before the results are certified, or misleading claims inciting “unlawful conduct to prevent a peaceful transfer of power or orderly succession.” It will also label or remove unverified claims about the outcome that could undermine faith in the election process, like claims about vote tallying or results certification. Twitter also bans threats of violence against an individual or group. YOUTUBE YouTube, the video service of Alphabet Inc, bans certain types of election misinformation, like incorrect voting dates, but it does not have a rule against premature claims of victory. A spokeswoman said in this scenario YouTube would show authoritative information and context alongside videos. YouTube says it removes content that incites people to commit violent acts against individuals or a defined group of people.