One of Brazil’s top consumer rights groups is protesting against the approval of a World Cup bill which FIFA and local organisers say is crucial to the country’s preparations ahead of the 2014 tournament.

The Brazilian Institute of Consumer Rights is urging the population to go on Twitter and Facebook to demand politicians vote against the bill, saying it would give FIFA too much power and few responsibilities while organising the event in Brazil.

The bill regulating football’s showcase tournament is expected to be voted on by a congressional commission on Tuesday.

If approved, it will then go before the lower house and eventually the senate.

Brazil President Dilma Rousseff also has to sign it.

“We need to keep the pressure,” said the institute, known as Idec.

“The most recent text doesn’t correct the abuses imposed by FIFA and criticised by society. They intend to approve and sanction the law in March, so we don’t have a lot of time to bring our message to the congressmen.”

The bill was expected to be voted on two weeks ago but some members of the commission asked for more time to analyse the proposal.

FIFA Secretary General Jerome Valcke says recently that he hopes the vote occurs by Tuesday.

The law enshrines the final commitments made by Brazil’s government when it bid to host the 2014 World Cup, including those about ticket sales, broadcasting rights and trademark infringement.

Among the issues causing problems is the sale of alcoholic beverages inside stadiums during football matches, which is something that has been against the law in Brazil since 2003.

Other disputes between FIFA and the Brazilian government include liability for security and safety problems, and the sale of discounted tickets to students and the elderly as guaranteed by Brazilian law.

The institute said its biggest concerns had to do with consumers losing some of their rights regarding ticket purchases during the World Cup, such as the right to cancel a purchase and still get refunds for it.

Brazil has some of the toughest laws regarding consumers rights but Idec said the new bill would weaken some of them, at least during the month-long tournament.

FIFA says it needs the bill approved because it sets the legal framework for the event and gives the governing body the necessary guarantees to organise the World Cup, the first in Brazil since the 1950 tournament.

FIFA has been pressuring Congress to approve the proposed law for some time. Valcke said last week that “an expedited process” was important to get on with the job and finally focus on the many operational and organisational duties that lie ahead for Brazil and FIFA.

“This legislative framework formed in the bill is crucial as it is the foundation for many key decisions to be implemented by the host cities, which had been put on hold until President Dilma Rousseff signs this ‘Lei Geral da Copa’, as it is called,” he said.

When Brazil was picked to host the World Cup, the nation accepted FIFA’s demands to make changes to its laws to facilitate the tournament’s organisation, but the proposed bill has generated a lot of controversy, with critics saying Brazilians shouldn’t bow to FIFA demands.

Former Brazil star Romario, now a congressman, has been one of the most outspoken critics of some of the issues in the bill.