Abstract
Addressing distributive justice issues in health policy—ranging from the allocation of health system funding to the allocation of scarce COVID-19 interventions like intensive care unit beds and vaccines—involves the application of ethical principles. Should a principle of sustainability be among them? I suggest that while the value of temporal neutrality underlying such a principle is compelling, it is already implicit in the more basic principle of equal treatment. Munthe et al imagine sustainability accompanying four other principles: need, prognosis, equal treatment and cost-effectiveness. Some are spelled out, however, in ways that are ambiguous or incomplete.