, ▁aer ob atic ▁plan es , ▁hel ic op ters ▁and ▁gl iders . ▁ ▁In ▁Canada , ▁however , ▁the ▁clubs ▁can ▁be ▁fairly ▁large ▁non - pro fit ▁operations , ▁some ▁d ating ▁back ▁to ▁the ▁ 1 9 2 0 s ▁and ▁operating ▁at ▁large ▁air ports ▁as ▁well ▁as ▁small . ▁Canadian ▁flying ▁clubs ▁often ▁serve ▁as ▁fixed - base ▁operators ▁at ▁their ▁air ports ▁as ▁well ▁as ▁flight ▁schools ▁and ▁aircraft ▁rent ers . ▁ ▁See ▁also ▁▁▁ ▁: Category : F lying ▁clubs , ▁a ▁list ▁of ▁flying ▁clubs ▁with ▁Wikipedia ▁articles ▁ ▁Open A ir plane ▁ ▁References ▁ ▁External ▁links ▁List ▁of ▁US ▁and ▁Canadian ▁F lying ▁Club s <0x0A> </s> ▁The ▁Division ▁of ▁Occ up ational ▁Saf ety ▁and ▁Health ▁of ▁California ▁( D OS H , ▁but ▁more ▁commonly ▁known ▁as ▁Cal / OS HA ) ▁is ▁an ▁ag ency ▁of ▁the ▁ ▁Government ▁of ▁California ▁established ▁by ▁the ▁California ▁Occ up ational ▁Saf ety ▁& ▁Health ▁Act ▁of ▁ 1 9 7 3 . ▁Admin ister ed ▁by ▁the ▁California ▁Department ▁of ▁Indust rial ▁Rel ations , ▁Cal / OS HA ' s ▁mission ▁is ▁to ▁protect ▁public ▁health ▁and ▁safety ▁through ▁research ▁and ▁reg ulation ▁related ▁to ▁ha z ards ▁on ▁the ▁job ▁in ▁California ▁work p laces ▁as ▁well ▁as ▁on ▁elev ators , ▁am usement ▁r ides , ▁and ▁ski ▁lif ts , ▁and ▁related ▁to ▁the ▁use ▁of ▁pressure ▁vessels ▁such ▁as ▁bo ilers ▁and ▁t anks