Someone has to fill in the multitude of gaps that exist between a law and its enforcement. Chevron moved much of that decision-making authority out of the court system into the executive branch.
Even a fully-functional representative body can't write laws that are explicit enough to cover every possibility. And the U.S. Congress is far from functional.
This is a key point that gets overlooked so often.
The Court accepts that governments outsource regulation to e.g. the private developers of building codes. Similarly, we don’t benefit from a Congress mired in details over the minutae managed by many areas of the federal government.
