Facebook will introduce stricter rules on political advertising to a number of countries holding elections this year. The rules and tools aimed at curbing election interference will go live in India, Nigeria, Ukraine, and the European Union. The rollout will begin on Wednesday in Nigeria. Katie Harbath, Facebook’s Director of Global Politics and Outreach, told Reuters that only advertisers located in the country will be able to run electoral adverts there. Rob Leathern, a Director of Product Management at Facebook, also discussed the importance of storing electoral adverts in a searchable library.

We’re learning from every country,” Leathern said. “We know we’re not going to be perfect, but our goal is continuing, ongoing improvement.” Facebook believes that holding the ads in a library for seven years is a key part of fighting intereference, he added.. The library will resemble archives brought to the United States, Brazil and Britain last year.