Richard Bord | Getty Images Entertainment | Getty Images Airbnb announced its third global ban on parties, following a temporary ban that took effect two years ago. The company permanently bans “subversive parties and events”, which include open invitation gatherings. “Party houses”, which people book to host a big event for one night only, will also remain banned. Airbnb and other short-term rental platforms, such as Vrbo, have struggled with large-scale parties and events. Airbnb banned party houses and released several security features in 2019, after five people were killed in shootings at one of its bookings. In 2020, the company introduced a global ban in all parts as the pandemic hit. Airbnb said that since implementing its policy in August 2020, it has seen a 44% year-on-year drop in the percentage of party reports. “The temporary ban has proved effective and today we are officially codifying the ban as our policy,” the company said in a blog post. But because of the way these companies operate, they can not always prevent parties from taking place. Guests can sometimes check into remote accommodation while the owner is away and can invite as many people as they want. Airbnb said visitors attempting to break its rules will face consequences ranging from account suspension to complete removal from the platform. In 2021, for example, more than 6,600 visitors were suspended by Airbnb for violating the party ban. Subscribe to CNBC on YouTube.