Crossword clues for Grp. 4 lettersAnswerClueOSHAWorkplace watchdog grp.SADDCampus grp. whose members may receive keysUSAFMilitary grp.HUACMcCarthy's grp.OPECGrp. with crude policiesNATODefense grp. formed in 1949NASALaunch party grp.?OSHAJob-safety grp.USSRFormer 15-member grp.ACLURights grp.NTSBPlane-crash grp.OSHAWorkplace safety grp.ACLUGrp. whose logo features the Statue of Liberty's headASSNGrp. of professionalsREGTGrp. of battalionsUSMCDevil Dogs grp.NYPDSerpico's grp.ROTCCampus mil. grp.AARPGrp. that produces "Mature Focus Radio"SETIGrp. often mentioned in The X-FilesMPAAMovie-rating grp.NASAColumbia grp.NASAShuttle grp.NTSBCrash-site grp.ROTCDuke's training grp.OSHAWorkplace injury grp.NASAGrp. affiliated with the JPLACLUGrp. that opposed the Patriot ActNATOCold war defense grp.ACLUGrp. interested in rightsMADDParents' advocacy grp. with the slogan "No More Victims"OSHAGrp. concerned with work hazardsTMNTGrp. named after Renaissance paintersUSAFGovernment grp. concerned with soaring costs?YMHAJewish males' grp.AAUWAlumnae grp.USMCLeatherneck's grp.USAFColorado Springs grp.ASSNGrp.ASSNFocused grp.KAOSGet Smart evil grp.OSHAWatchdog grp. since 1970OPECBarrel grp.WAACFemale WWII grp.USMCGrp. whose motto is "Semper Fidelis"MPAATrailer-assessing grp.USDAGovt. farm grp.AARPSenior citizen's grp.LPGASwingers grp. for womenLPGAFemale swingers' grp.