Before the LUC bill was sent to the Legislative Branch and later during the parliamentary discussion, the PIT-CNT trade union center spoke out against its contents and the use of the constitutional remedy of "urgent consideration", considering it a mechanism undemocratic, considering that it "limited" the political and social debate. On 4 June 2020, the workers' union held a demonstration in front of the
Legislative Palace, during which its secretary general, Marcelo Abdala, stated that the LUC was not meeting the needs of the population in the context of the
COVID-19 pandemic " neither in form nor in content. The ANCAP Federation (Fancap), a union of workers of the state fuel company
ANCAP, was one of the first organizations to express itself in favor of filing a referendum against the LUC, considering it contrary to "the interests of the working class", according to its president Gerardo Rodríguez. One of the main points of objection was the elimination of ANCAP's monopoly for the import, export and refining of crude oil and derivatives, an issue that generated discussion even within the ruling coalition itself, and ended up being excluded from the bill during the parliamentary debate. Instead, it was established that the price of fuels be defined by the Executive Power, with an adjustment in line with the import parity price with a periodicity not exceeding sixty days, against which Fancap also manifested itself in disagreement. In May, the National Political Board of the Broad Front expressed its rejection of the "urgent consideration" mechanism and characterized the bill as "inopportune, unconstitutional and undemocratic". During the parliamentary analysis, its legislators worked to incorporate various modifications, but they considered that the final version did not present substantial changes with respect to the original and, therefore, they maintained their negative vote on the bill, despite voting in favor of almost 50% of the articles. On 9 September, the PIT-CNT officially announced for the first time that it would begin to analyze the possibility of developing a campaign with this objective, although at the moment it was not something definite. The campaign to collect signatures to file a referendum was confirmed on 17 October by
Intersocial, a space made up of various social organizations in addition to the PIT-CNT, such as the Uruguayan Federation of Cooperatives for Mutual Savings (FUCVAM), the Intersocial Feminista and the Federation of University Students of Uruguay (FEUU). Two days later, on the 19th, the Broad Front decided to join the campaign, a decision ratified on the 23rd by the Board. In Uruguay there are two ways to file a referendum appeal against a law before the
Electoral Court. In one of them, it requires reaching the adhesions of 25% of the total number of registered voters in a period corresponding to the first year after the promulgation of the law and directly leads to the holding of the referendum. On the other hand, the other route requires reach at least 2% of the total number of registered voters eligible to vote within a period of 150 days after the enactment of the law and gives rise to the holding of an election with a non-compulsory vote known as a pre-referendum, in which if 25% vote affirmatively, a referendum must be held. Depending on the time required to collect signatures in each case, the first form is popularly known as "the long one" and the second as "the short one". At first, both the PIT-CNT and the Intersocial proposed to follow the "long way". On the Broad Front, this issue generated divisions, since the
Communist Party (PC) and the
Socialist Party supported the "long way", but other sectors such as the
Movement of Popular Participation (MPP), the
Uruguay Assembly (AU) and the Renovating Force (FR) preferred the "short way" given the risk implied by the high percentage of signatures required by the other mechanism. On 8 December 2020, it was formally reported that the FA had also opted for the "long way", in agreement with social organizations. Another of the most important issues was whether the referendum would seek a total or partial repeal of the LUC and, in the latter case, which articles. In early December, as a result of an agreement between the different actors, it was announced that they would seek to repeal 133 articles, referring to the issues of public security, the economy, public companies, the agricultural sector, labor relations, social security and housing. In addition to the fact that among the articles to be repealed there were some that were voted by the FA in Parliament. On 14 December, made up of the PIT-CNT, the FA and the Intersocial, the National Pro-Referendum Commission (later the National Commission for the
YES) was installed. and on 29 December 2020, the campaign to collect signatures began to repeal 135 articles of the Law of Urgent Consideration. == Opinion polls==