HSE, theHSE, the /ˌeɪtʃ es ˈiː/ 
(the Health and Safety Executive) a British government organization that gives advice to companies about health and safety, and makes rules to prevent workers from being injured or becoming ill at work
(the Health and Safety Executive) a British government organization that gives advice to companies about health and safety, and makes rules to prevent workers from being injured or becoming ill at work