In an exclusive interview, top executives at Facebook (FB) who oversee content called for government regulation of posts that appear on the site, saying the company has helped public officials better understand the platform and how to write rules for it.

But the executives did not provide specifics about the potential rules or how they may be enforced on a platform with 2.4 billion monthly active users worldwide.

“We think there does need to be a regulatory standard for how to deal with content,” says Guy Rosen, vice president of integrity, who oversees the development of products that identify and remove abusive content on the site.

“We sit down with governments and we share, this is how our systems work, this is how content is reported, how it's reviewed,” he adds.

Critics from across the political spectrum have assailed Facebook for a perceived failure to police bias, misinformation, and offensive content on its platform. In July, President Donald Trump derided the company for “terrible bias” against him and his backers. Meanwhile his political adversary, Democratic Massachusetts Senator Elizabeth Warren, attacked Facebook in March for removing presidential campaign ads that took aim at the tech giant.

The company has acknowledged that content moderation puts it in the difficult position of policing speech, spurring it to partner with outside fact-checking organizations after the 2016 election to address misinformation.

‘How do you measure what is effective?’

Facebook CEO Mark Zuckerberg initially called for government regulation of content in a March op-ed in the Washington Post, inviting, “third-party bodies to set standards governing the distribution of harmful content and to measure companies against those standards.”

Since the site’s users span the globe, potential regulation raises questions of how to make rules and enforce them, Rosen says.

“The world is trying to figure out what that looks like,” Rosen says. “How do you set benchmarks? How do you measure what is effective?”

“For us, it’s making sure that we're out there, and we're opening up, and we're sharing everything we've learned, and what we think sets up the right kind of measures and incentives, is exceptionally important,” he adds.

Last November, the company allowed French regulators to spend six months observing how the company removes hate speech and other abusive content.

To an extent, countries already regulate content on Facebook and Instagram: In the second half of 2018, the company restricted content on the platforms 35,972 times upon request from national governments, an increase of 135% from the prior six-month period, according to its transparency report.