Parents are being stopped lighting up at 24 primary schools in Hull in a bid to create a smoke free generation.
The move follows the introduction last year of a smoke-free playground policy, which saw smoking stubbed out at all 91 playgrounds in the city.
Every month it's believed 40 people in Hull die as result of conditions directly related to smoking.
Councillor Gwen Lunn, the city council's portfolio holder for public health, says: "Creating a smoke-free generation sounds ambitious – and it is. But that doesn’t mean it’s unachievable. Hull’s smoking rates are coming down, but they remain stubbornly high in comparison to national averages and we’re determined to do all we can to change that.
"Introducing measures like smoke-free school gates and before that smoke-free sidelines and playgrounds helps to chip away the places children see smoking, breathe in smoke and have it reinforced as something that is normal for grown-ups to do. Every month 40 people in Hull die as a result of conditions directly related to smoking and that simply can't continue.
"We've been delighted by the response from schools, most of which have been keen to update their policies and involve children in designing signs to communicate the change to their parents and carers.
"We know most people already choose not to smoke at school gates, but it’s vital we continue to send the message that young people must be protected from tobacco. We’re confident that these are changes which will pay off long-term and this generation of children will grow up seeing smoking as something which isn’t the norm."