[1] S.2658 - ACCESS Act of 2019 It require communications platforms with 100M monthly active users in the US to make their services interoperable with other platforms. The bill presumes that platforms using open protocols already (like email) are fine. Facebook and it’s messenger platform is likely to be the only one meeting the threshold.
[2] S.1951 - DASHBOARD Act
It applies to online platforms or data brokers with over 100M monthly users in the United States for most months over the last year, and says they should disclose a lot of information about the user data they hold.
[4] S.1578 - Do Not Track Act It says that the FTC must implement a DNT system that defines a standard for devices, websites and services to send and receive DNT requests, and develop an app for users to send DNT requests.
[5] S.1084 - DETOUR Act It says that large online operators (defined as services with more than 100M monthly active users anywhere, not just in the US) may not use misleading interfaces or unclear wording to mislead the user. It also says that they can only conduct behavioral experiments.
Links:
[0] Whitepaper: https://www.warner.senate.gov/public/_cache/files/d/3/d32c2f17-cc76-4e11-8aa9-897eb3c90d16/65A7C5D983F899DAAE5AA21F57BAD944.social-media-regulation-proposals.pdf
[1]ACCESS Act of 2019: https://www.congress.gov/bill/116th-congress/senate-bill/2658/text
[2]DASHBOARD: https://www.congress.gov/bill/116th-congress/senate-bill/1951/text
[3]Do Not Track: https://www.congress.gov/bill/116th-congress/senate-bill/1578/text
[4]DETOUR: https://www.congress.gov/bill/116th-congress/senate-bill/1084/text