Pure-risk standards, sometimes termed zero-risk, are mandated or implied by only a few statutory provisions.
Following are two examples of such standards:
The "Delaney clause" of the Federal Food, Drug, and Cosmetic Act prohibits the approval of any food additive that has been found to induce cancer in humans or animals.
The provisions of the Clean Air Act pertaining to national ambient air quality standards require standards for listed pollutants that "protect the public health allowing an adequate margin of safety," i.e., that assure protection of public health without regard to technology or cost factors.
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