The social media company announced in June that it plans to launch a new digital coin called "Libra" in 2020, which shocked regulators and legislators. After that, Facebook has been working hard to win the support of the US government.
Policy makers and financial regulators in the US and abroad are concerned that Facebook's 2.38 billion users will have an impact on the global financial system if they use the "Libra".
Facebook said the currency will be issued and managed by the Libra Currency Association in Geneva, Switzerland.
Waters met with representatives of the Swiss State Secretariat for International Financial Affairs, the Federal Data Protection and Information Commissioner, the Financial Markets Authority and the Swiss Legislature.
She said that Swiss officials help them understand the status quo, complexity and importance of the Facebook program.
US lawmakers criticized Facebook's plan at a hearing at the Waters committee in July, saying the company has yet to prove that it can protect the world's financial system and consumer data.