That was the original motivation but it slowly mutated into general guidelines for safety-critical C in embedded systems. Although not an official regulatory r

That was the original motivation but it slowly mutated into general guidelines for safety-critical C in embedded systems. Although not an official regulatory requirement it is often used as a guideline in low-resource targets for Medical embedded systems. In aerospace for example the JPL guidelines are also influenced by the initial MISRA consortium effort. And at least in style and motivation the JSF for C++ ia also influenced by MISRA.