Speaker Tony Smith will report back next year as to whether embattled Energy Minister Angus Taylor could be in contempt of parliament.
Mr Taylor has faced a series of scandals and is under police investigation for using doctored documents to attack the Sydney lord mayor.
Manager of opposition business Tony Burke on Thursday accused Mr Taylor of deliberately misleading parliament multiple times.
He has asked the speaker to consider whether Mr Taylor is in contempt of parliament.
Labor is piling pressure on the prime minister to sack his embattled cabinet colleague.
Scott Morrison has confirmed the embattled energy minister will be keeping his job, even as major changes are made to his department.
Mr Morrison is consolidating the energy, industry, science and resources departments into a single mega agency.
But Mr Taylor will maintain ministerial responsibility for energy and carbon emissions.
"Why would he not?" the prime minister told reporters on Thursday.
"If the prime minister had any courage he would enforce his ministerial standards and sack Angus Taylor," Labor frontbencher Tanya Plibersek said.
"He must account for the fact that he has used a document that is plainly a forgery and the prime minister needs to make him account for that."
As the police investigation continues, a Labor and Greens-dominated Senate committee has found Mr Taylor breached ministerial standards in a separate incident.
The committee investigated Mr Taylor's private financial interests in Jam Land Pty Ltd, a family company subject to a compliance investigation by his own department.
In an interim report released on Wednesday night, the committee found Mr Taylor failed to disclosed his interests and sought to use his position to obtain special treatment.
"Mr Taylor's actions represent not only a contravention of the Morrison government's own ministerial standards, but have also fallen well short of the public expectations of the integrity of the government and parliament," the report said.
Unsurprisingly, coalition members of the committee issued a dissenting report.
They accused Labor and the Greens of a "blatant abuse and misuse" of the Senate committee process.
Mr Taylor has consistently said he complied with the rules around the declaration of personal interests.
Australian Associated Press