Quiznos, a quick service restaurant chain specializing in sandwiches, has committed to sourcing slower-growing broiler chickens.

The company, in a press release, stated that it will align its chicken supply chain with Global Animal Partnership (GAP) standards in the raising and treatment of chickens. Those standards assess the level of animal welfare, both on the farm and during transport, and include giving the animals space, light and other environmental considerations.

Quiznos stated that by 2024, its entire broiler supply will be GAP certified and processed in a manner that utilizes a pre-shackle multi-step controlled-atmosphere processing system.

“We’re committed to providing guests great tasting food made from high quality ingredients, and we strive to adopt best practices in animal welfare initiatives,” said Susan Lintonsmith, CEO of Quiznos.

Lintonsmith noted that the restaurant chain worked with the Humane Society of the United States (HSUS) to address the company’s animal welfare issues. HSUS praised Quiznos for its new policy, calling the chain a “leader in animal welfare.”

Quiznos’ decision to source from farms with slower-growing broiler breeds follows a 2016 commitment to source only cage-free eggs by 2025.

Headquartered in Denver, Colorado, Quiznos has locations across the United States and in 31 countries. The company was founded in 1981.