“Consuming tobacco or using hookah pipes are forbidden in coffee houses, traditional eateries, restaurants, cafes, hotels, hostels, parks and all other public places,” prosecutor Mehedi Kahe said, semi-official news agency ISNA reported on Thursday.
Kahe said the ban – set to be made public in the next few days – was taken on health grounds and warned that any establishments breaking the rules will be shuttered.
Haji-Reza Shakarmi said smoking in all its forms was prohibited in public places in the province.
“The law is in force and all institutions have to comply,” he said, quoted by the Mehr and Tasnim news agencies.
Smoking tobacco in public places, except for in the street, has been officially forbidden in Iran since 2006, but the measure is often violated.
In 2008, the government reversed a plan to ban hugely popular hookah pipes in traditional coffeehouses after protests by owners who complained it would deprive them of the vast bulk of their income.
The city of Qom, 120 kilometres south of Tehran, is a major Shia theological centre and one of the most conservative cities in Iran.
According to the latest World Health Organisation figures, some 20% of men and 0.6% of women among Iran’s population of 80 million smoke every day.