Food trucks could be rolling in Cummings Research Park by the end of the summer.

Under a proposed zoning change working its way through Huntsville City Hall, mobile food vendors would be allowed to set up in businesses parking lots anywhere in Cummings or the adjacent Thornton Research Park.

But there are limits:

Vendors would need written permission to use a business' parking lot and could serve food only at lunchtime -- 10 a.m. to 2 p.m. weekdays.

Last month, the Huntsville-Madison County Chamber of Commerce surveyed 25 Cummings Research Park CEOs and vice presidents about food trucks; all said they want their employees to have the option of a grab-and-go lunch nearby.

"It had pretty overwhelming support," assistant city planner Ashley Nichols told AL.com Tuesday.

Some companies with secure buildings have expressed concern about food truck workers using their restrooms. The proposed rule change says mobile vendors parked for more than two hours must provide toilet facilities for their employees, but not customers.

"That's a requirement of the Madison County Health Department," said Jim McGuffey, manager of planning services for the city.

The proposal gives city-owned Cummings Research Park the flexibility to create a dedicated outdoor food truck park with bathrooms, picnic tables and room for multiple vendors.

Food trucks have become a Huntsville obsession, with monthly downtown street food rallies consistently drawing massive crowds. But the 29,000-plus people who work in Cummings Research Park have never had easy access to a food truck lunch.

The proposed zoning change is scheduled for a public hearing and vote at the June 23 Huntsville Planning Commission meeting. If the planning board OKs the idea, it would go to the City Council for a second public hearing on Aug. 27.

"We could see food trucks in Cummings Research Park before Labor Day weekend," said Nichols.