The incoming far-right president said he requested the change. Environmentalists are worried about how the Bolsonaro administration will handle environmental issues.
The retired army captain has expressed admiration for the country's brutal 1964-1985 dictatorship; made incendiary remarks about women, minorities and LGBT people; and decried "fake news."
Onetime targets of Brazil's dictatorship are worried that a candidate who openly admires the past military regime is expected to win Sunday's presidential election.
Jair Bolsonaro was attacked while campaigning on Thursday. Experts say the hardliner may see his lead increase through television exposure and candidates who are pulling back attack ads.