give (someone or something) a clean bill of health

1. To issue a report that someone or an animal is in good physical health. A: "How did your doctor's appointment go?" B: "Good! The doctor gave me a clean bill of health!" Yes, the zoo's veterinarian team gave the lion a clean bill of health this morning. Josie was very relieved when her doctor gave her a clean bill of health.

2. To issue a report that something is in good working order. A: "The price is right. Does the car work all right?" B: "Yep, my mechanic just gave it a clean bill of health last week!" Hold on, IT can't possibly have given this computer a clean bill of health—it already crashed on me twice this morning! I'm still kind of nervous to ride the elevator now, even though the repairman gave it a clean bill of health.

3. To issue an assurance that an organization or process is operating properly according to specific standards. Despite accusations that the company had polluted the lake, local environmental watchdogs have given it a clean bill of health. Economic analysts recently gave the company a clean bill of health after its many years of financial trouble. Yes, the company dealt with an embezzlement scandal a few years ago, but prominent people in the industry recently gave it a clean bill of health.