PHOENIX — Siding with retailers, the state House voted Wednesday to at least partly preempt cities and towns from enacting their own rules on the sale and marketing of tobacco and vaping products.

The preliminary approval of Senate Bill 1147 on a voice vote came after Rep. John Allen, R-Scottsdale, who is working with the vaping industry, agreed to some last-minute changes designed to blunt opposition.

Most notably, the changes would allow communities like Tucson and Tempe to keep their existing regulations on the sale of these products. But they would be forbidden from enacting anything more restrictive if the bill becomes law. And other communities that wanted to license and regulate retailers would be barred from doing so.

The bill does contain provisions allowing for some new local regulation, not of how vaping products could be sold at stores or in vending machines, which SB 1147 would prohibit, but of where people could light up.

So while state law already prohibits smoking in public places, SB 1147 would allow cities, towns, counties and school boards to decide they don’t want to allow vaping in public places, government buildings, parks or publicly owned stadiums.

But Allen, who is promoting the legislation, said the big selling point is that it would set the minimum age for purchasing tobacco and vaping products at 21.

The fine for underage possession would be a minimum of $100 or 30 hours of community service.

By contrast, House Bill 2357, which gained unanimous Senate approval earlier this month, would leave the age for both at 18.

Sen. Heather Carter, R-Cave Creek, who is behind that plan, said she and her allies at the American Cancer Society would like to raise the age for smoking and vaping to 21.

But she said it can’t come at the price of letting “Big Tobacco, which now owns Big Vape” — some tobacco firms have bought into vaping companies — define its own rules and block the kind of regulations that she said have proven more effective than existing state tobacco laws at preventing youth use.

Her approach would subject retailers to the same restrictions on getting ID from buyers and limit how close tobacco and vaping retailers could be to schools. It also would automatically extend to vaping products the existing ban on smoking in public places, including restaurants and near the entrances of public buildings.

Brian Hummel, a lobbyist for the American Cancer Society, said HB 2357 has a broad definition of vaping products. He said that is designed to ensure the industry does not exploit what he called loopholes in SB 1147 to market new kinds of nicotine-delivery devices that would escape state regulation.

Some cities, like Tucson, not only license retailers but can suspend their license to sell tobacco products if they’re found to have sold to anyone younger than 18.

Cottonwood makes selling tobacco products to minors a crime punishable by up to six months in jail.

Under SB 1147, other communities could not follow suit.

More broadly, Carter said barring local laws restricting how tobacco and vaping products can be promoted would allow companies to market to teens.

As an example, she cited an incident in Maricopa County last month where flyers promoting vaping products were placed on cars in a lot across the street from a high school. SB 1147 would allow local restrictions only if the government agency owned the land where the cars were parked.

Allen defended the preemption provisions.

“You want to have a market where you can do business,” he said.

“The retailers are saying, ‘I don’t want to have to pay $900 or $1,000 per store in one district to sell tobacco products and nothing over here,’” Allen said.

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He complained that the Carter bill would preserve the right of communities to set the minimum age for purchase and use of these products at 21 — or higher.

“How do you train employees?” Allen asked. “How can you patchwork-wise run your business if in every jurisdiction you have different rules?”

Allen told colleagues there’s another reason they should favor his approach.

He said Carter’s bill would pave the way to taxing vaping products like tobacco. From his perspective, that means not just the liquids that are vaped, but the devices and the batteries that power them.

“It’s clouding the issue with a giant cloud of vape,” Carter responded, saying nothing in her measure raises any new taxes on vaping devices.

Allen, however, is not convinced. “Some of the health groups are saying, ‘What we really need to do is tax this out of existence,’” he said.

Hummel acknowledged that the cancer society would support new taxes on vaping products.

SB 1147 still needs a final roll-call vote before going to the Senate for consideration.

In the meantime, an aide said House Speaker Rusty Bowers has not decided whether to allow a vote on the Senate-passed HB 2357.