skidmore swift argued october decided december curtis mcbroom fort worth petitioners beverly thompson fort worth respondent justice jackson delivered opinion seven employees swift company packing plant fort worth texas brought action fair labor standards act et recover overtime liquidated damages attorneys fees totalling approximately district rendered judgment denying claim wholly circuit appeals fifth circuit affirmed denied daytime employment persons working time within act two engaged general fire hall duties maintenance equipment swift plant others operated elevators acted relief men fire duties worked lunch period five days week paid weekly salaries oral agreement employment however petitioners undertook stay fire hall company premises within hailing distance three half four nights week involved task except answer alarms either fire sprinkler set reason fires occurred period issue alarms rare time required answer rarely exceeded hour alarm answered employees paid addition fixed compensation agreed amount fifty cents first later cents company provided brick fire hall equipped steam heat rooms provided sleeping quarters pool table domino table radio men used time sleep amusement saw fit except required stay close fire hall ready respond alarms stipulated agreed remain fire hall stay within hailing distance subject call event fire casualty required perform specific tasks periods time except answering alarms trial found evidentiary facts stipulated made findings fact whether arrangement parties circumstances case respects differ armour case armour wantock et fire hall duty part thereof constituted working time said however law time plaintiffs spent fire hall subject call answer fire alarms constitute hours worked overtime compensation due fair labor standards act interpreted administrator courts opinion observed course know pursuing pleasurable occupations performing personal chores constitute work circuit appeals affirmed reasons set forth armour case decided herewith hold principle law found either statute decisions precludes waiting time also working time attempted lay legal formula resolve cases varied facts many situations employment involves waiting time whether concrete case time falls within without act question fact resolved appropriate findings trial walling jacksonville paper involves scrutiny construction agreements particular parties appraisal practical construction working agreement conduct consideration nature service relation waiting time surrounding circumstances facts may show employee engaged wait way show waited engaged compensation may cover waiting task performance task living quarters may situations furnished facility task another part compensation law impose arrangement upon parties imposes upon courts task finding arrangement minimize difficulty inquiry arrangements parties contemplated problem posed statute differ nature standards guide judgment frequently conronts courts must find retrospectively effect contracts matters parties failed anticipate explicitly provide congress utilize services administrative agency find facts determine first instance whether particular cases fall within without act instead put responsibility courts kirschbaum walling create office administrator impose upon variety duties endow powers inform conditions industries employments subject act put duties bringing injunction actions restrain violations pursuit duties accumulated considerable experience problems ascertaining working time employments involving periods inactivity knowledge customs prevailing reference solution obliged reach conclusions conduct without law seek injunctions stop within law call interfere set forth views application act different circumstances interpretative bulletin informal rulings provide practical guide employers employees office representing public interest enforcement seek apply wage hour division interpretative bulletin administrator thinks problems presented inactive duty require flexible solution rather rules respectively urged parties case bulletin endeavors suggest standards examples guide particular situations occupations says periods inactivity properly counted working time even though employee subject call examples operator small telephone exchange switchboard home ordinarily gets several hours uninterrupted sleep night pumper stripper well watchman lumber camp season may duty hours day ordinarily normal night sleep ample time eat meals certain amount time relaxation entirely private pursuits exclusion hours administrator thinks may justified general answer depends degree employee free engage personal activities periods idleness subject call number consecutive hours employee subject call without required perform active work worked limited time spent active labor include time given employee toi employer facts case fall within specific examples given conclusion administrator expressed brief amicus curiae general tests suggested point exclusion sleeping eating time employees inclusion time although employees required remain premises entire time evidence shows rarely interrupted normal sleeping eating time pursuits purely private nature presumably occupy employees time whether duty apparently pursued adequately comfortably required circumstances rest time different nothing record suggest even though pleasurably spent spent ways men chosen free statutory provision deference courts pay administrator conclusions given notice occasion try prescribe influence rulings administrator reached result hearing adversary proceedings finds facts evidence reaches conclusions law findings fact course conclusive even cases directly deal much less apply analogy constitute interpretation act standard judging factual situations binds district processes authoritative pronouncement higher might administrator policies made pursuance official duty based upon specialized experience broader investigations information likely come judge particular case determine policy guide applications enforcement injunction behalf government good administration act good judicial administration alike require standards public enforcement determining private rights shall variance justified good reasons fact administrator policies standards reached trial adversary form mean entitled respect long given considerable cases decisive weight treasury decisions interpretative regulations treasury bodies adversary origin consider rulings interpretations opinions administrator act controlling upon courts reason authority constitute body experience informed judgment courts litigants may properly resort guidance weight judgment particular case depend upon thoroughness evident consideration validity reasoning consistency earlier later pronouncements factors give power persuade lacking power control courts armour case weighed evidence particular case light administrator rulings reached result consistent therewith evidnece case respects understanding separate compensation answering alarms different case must stand facts case although district referred administrator bulletin evaluation inquiry apparently restricted notion waiting time may work understanding law hold erroneous accordingly judgment reversed cause remanded proceedings consistent herewith reversed