Brazil's President Jair Bolsonaro has signed a decree aimed at restricting the powers of social media companies to remove accounts and content.
Throughout the coronavirus pandemic, Twitter and Facebook have removed many posts shared by the president and his supporters that were deemed misleading.
The new decree aims to provide clarity on the powers of social media companies to police content on their platforms, the president's office said.
Details of the decree released so far simply state that tech giants will have to provide "just cause and motivation" before removing an account or content.
Supporters of the president will be protesting against the country's Congress and Supreme Court, which last month added Mr Bolsonaro's name to a list of people being investigated over the alleged production of misinformation.
Critics have said the marches, which coincide with the country's Independence Day celebrations, represent a danger to democracy.