Google and Facebook-owner Meta Platforms urged the Australian government on Tuesday to delay a bill that will ban most forms of social media for children under 16, saying more time was needed to assess its potential impact.

The companies argue that more time is needed to assess the bill’s impact and await results from an age-verification trial.

Prime Minister Anthony Albanese’s government aims to pass the legislation—one of the strictest globally on children’s social media use—by Thursday, the final day of the parliamentary year. Introduced last week, the bill was open for public submissions for just one day, drawing criticism for its expedited timeline.

The proposed law would require social media companies, rather than parents or children, to enforce age-verification measures, potentially using biometrics or government-issued identification. Companies found in breach could face fines of up to A$49.5 million ($32 million).

Meta criticised the bill as “inconsistent and ineffective” without clear results from the age-verification trial. Google echoed the sentiment, urging for a measured approach to ensure Australians understand the implications of the legislation.

TikTok raised “significant concerns” over the lack of consultation with experts, social media platforms, mental health organisations, and young people. “Novel policies must be drafted thoroughly to ensure their success,” the company stated.

Elon Musk’s X also opposed the bill, arguing it could infringe on children’s human rights, including their freedom of expression and access to information. Musk, a vocal advocate for free speech, accused the government of using the bill as a backdoor to control internet access.

The opposition Liberal Party has signalled support for the bill, while some independent lawmakers have criticised the government for rushing its passage. A Senate committee report on the bill is expected on Tuesday.