Most Australian businesses would claim to have a positive workplace culture (or be aspiring to have one), although this may not be borne out in reality. If a poor workplace culture exists, is this solely the employer’s responsibility? More to the point, can an employer or Person Conducting a Business or Undertaking (PCBU) in a work health and safety context be held liable if a poor workplace culture impacts on workers’ health? Based on recent action taken by safety regulators, the answer is yes.