By Jennifer McKiernan & Helen Catt
Plans to stop young people born since 2009 ever smoking are to be debated and voted on later.
Rishi Sunak's bill aims to create the UK's first smoke-free generation in a major public health intervention.
The Tobacco and Vapes Bill would ensure anyone turning 15 from this year would be banned from buying cigarettes, and also aims to make vapes less appealing to children.
A number of Tory MPs have told the BBC they won't back the bill.
Conservative MPs will get a free vote on it so they won't be ordered to vote with the government, but the bill is likely to pass as it has Labour support.
The bill would make the sale of tobacco products, rather than the act of smoking, illegal.
Tobacco use is the UK's single biggest preventable cause of death, killing two-thirds of long-term users and causing 80,000 deaths every year.
On top of that, a patient is admitted to hospital with a smoking-related condition, such as heart disease, strokes and lung cancer, almost every minute in England.
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