clean bill of health
noun[C]
ukuspluralclean bills of healthanofficialstatementthat something has beenfoundto besafe,legal, or in goodfinancialcondition:
Two of thebridgesgottentativecleanbillsofhealthfrominspectorson thesceneFriday.
give sth a clean bill of healthAmeetingof EUfinanceministersgave theEuropeaneconomyacleanbillofhealth.