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Smoking and oversized strollers will soon be banned at Disneyland and Walt Disney World Resort as Disney implements rule changes to its theme parks ahead of the highly anticipated opening of Star Wars: Galaxy Edge.

On Thursday Disney announced that starting May 1, strollers larger than 31 inches wide and 52 inches long will no longer be allowed inside the Anaheim and Florida theme parks, as well as Disney’s water parks, ESPN Wide World of Sports Complex and Downtown Disney.

The current policy allows all strollers smaller than 36 inches.

“The good news – many strollers on the market, including many double jogging strollers, fit within these size guidelines,” Disney said in a statement on its website.

Disney also said “stroller wagons will no longer be permitted.”

The changes come as Disney prepares to open Star Wars: Galaxy’s Edge on both coasts over the next few months.

At Disneyland, the opening date has been set for May 31.

Guests who want to experience the Star Wars-themed land between May 31 and June 23, 2019, will need a valid ticket to the theme park, as well as a no-cost reservation, the park said.

Those who stay at one of the three Disneyland Resort hotels between those dates will automatically receive a designated reservation.

Starting on June 24, anyone with a valid park ticket will be able to access the new land.

Details about the reservations have not been released yet.

Star Wars: Galaxy Edge won’t open at Walt Disney World until Aug. 29.

The new rules for strollers are geared toward aiding the flow of traffic through the park and should help ease congestion once the new lands open.

If you’re unsure about the size of your stroller, Disneyland does rent strollers for a cost of $15 per day for one stroller, or $25 per day for two strollers.

Also beginning May 1, designated smoking areas inside the parks will be removed. Disney said there will be designated smoking areas outside the theme park entrances.

And effective Thursday, Disney has also banned “loose or dry ice” inside its parks. Guests needing ice to keep snacks cool can request complimentary cups of ice at drink locations inside the parks.