From WATTAgNet:

In 2014, Chick-Fil-A became the first quick-service restaurant chain to commit to a 100 percent raised-without-antibiotics standard for poultry. Since then, several quick-service restaurant chains have followed suit.

Chipotle, Panera, McDonald’s, Dunkin’ Donuts and Wendy’s have also enacted some sort of antibiotics policy.

In March 2015, McDonald’s said chicken served at its U.S. restaurants will soon be raised without antibiotics that are important to human medicine. The fast food chain intends to phase into its new antibiotics policy over the next two years. While McDonald's will only source chicken raised without antibiotics important to human medicine, the farmers who supply chicken for its menu will continue to responsibly use ionophores, a type of antibiotic not used for humans that helps keep chickens healthy. And, just last month, the company said it will stop serving chicken from birds raised with the use of antibiotics that are important to human medicine at its restaurants in Canada.

In July 2015, Wendy’s said it is testing the sale of antibiotic-free chicken at restaurants in four regional markets. While the restaurant chain currently has a policy to not use antibiotics essential in human medicine, this will be the first time it serves chicken that were never treated with any antibiotics.

In September 2015, U.S.-based sandwich restaurant chain Subway announced it will make the switch to serving chicken raised without antibiotics that are also used in human medicine by 2016, but in October, the company revealed plans for a much more ambitious policy on animal antibiotics, where Subway's chicken, turkey, pork and beef supplies would come from animals raised without any antibiotics.


Chick-fil-A to serve antibiotic-free chicken

Chick-fil-A, Inc. announced Feburary 11 the company's plan to serve chicken raised without antibiotics in all Chick-fil-A restaurants nationwide within five years. This move marks the first time a quick service restaurant has committed to a 100 percent 'raised without antibiotics' standard for poultry.