The entire board of directors behind the "French Oscars" has tonight announced its resignation.
Polanski pleaded guilty to unlawful sex with a 13-year-old girl in 1977, and fled the USA soon after.
Polanski, embroiled in fresh rape allegations, has had his new film, An Officer and a Spy nominated for 12 Cesars.
Per the Agence France-Presse, the entire board of directors of the organization has opted to resign "to honor those who made the cinema in 2019, to regain serenity, and to make the cinema festival a celebration".
"This collective resignation will make it possible to proceed with the complete renewal of the management".
A number of feminist groups have urged Cesar voters to snub Polanski's film, which is about the Dreyfus affair of the 1890s.
'When we mobilise, things happen!', said feminist collective Nous Toutes amid calls for a protest outside the Paris auditorium. "Will we finally stop applauding rapists and paedophiles on the run?"
The Cesar Academy has said it could not be expected to take "moral positions" when evaluating films.
Dozens of film industry personalities - including X-Men actor Omar Sy and Berenice Bejo of the 2011 film The Artist - have denounced the academy's "opaqueness" in an open letter.
A Cesar Award trophy is displayed in Paris last month.
They also complained that the founding statutes of the Cesars had not changed in a long time and that the academy's almost 5,000 members have no say in decision.
Franck Riester, the French Minister of Culture, commented on the news and said the new board of directors will have to represent cinema in "all its diversity".
The group has said that it will resign after this year's ceremony takes place on 28 February, while there has also been talk of boycotts over gender and race disparity within the awards' voting body.
Polanski has been wanted in the United States for the statutory rape of a 13-year-old girl since 1978 and is persona non grata in Hollywood. But in November, French daily Le Parisien reported claims from a French woman that she was assaulted at age 18 in 1975 by Polanski at his chalet in Gstaad, Switzerland.
Polanski was expelled from Hollywood's Academy of Motion Picture Arts and Sciences, which awards the Oscars, in 2018.