Labour says changes proposed by the Government will leave children at short-term childcare facilities vulnerable to sex offenders.
The Education Amendment Bill passed its first reading last week and removes the requirement for carers at limited attendance childcare centres to have police checks.
Education Minister Anne Tolley says it is not appropriate for the requirement to be contained in the bill because gym creches and baby-sitting services are not providers of early childhood education.
She says parents have the responsibility to leave their children in a safe environment.
But Labour education spokesperson Trevor Mallard says the Government is removing the children's protection from paedophiles.
He says Labour would support the requirement being introduced into other legislation.