The state of Rio de Janeiro will allow football fans into stadiums from July 10, initially at one-third capacity, according to an official decree.
Capacity will move to two-thirds from August 1, while stadiums will be able to function with no restrictions from August 16, said the decree published by Rio townhall on Friday.
The initial easing must allow for 4 sqm per person and ticket sales will only be online.
The Rio state championship has been the first to resume in South America, a region hit hard by the coronavirus pandemic.
The league, comprising professional teams within Rio state, resumed behind closed doors on June 18.
Brazil has the second-highest number of infections and deaths from the new coronavirus worldwide, after the United States: more than 1.2 million and 55,000, respectively.