There is a level of detail that isn't practical to include in law. It's pretty normal for Congress to sketch the general outline of regulation and require the relevant bureaucracy to fill in the details.

Though in this particular case, unless this is based on a change to the law it seems like an overreach by the FCC.

> There is a level of detail that isn't practical to include in law.

Isn't this the argument against unelected rulemaking?

Suppose administrative agencies worked like this: They draft rules and then periodically submit them to Congress who decides whether to enact them. For uncontroversial changes this is essentially a rubber stamp, Congress defers to the experts' recommendations and passes the proposed rules. But now if the administrative agency tries to make a major policy change, it can't go through without Congressional approval, and Congress is fully within their authority to reject or amend the proposal.

What advantage is there in giving the unelected bureaucrats the authority to change the rules without approval, except to Congress in dodging accountability for what happens?