Whether the "intelligible principle" test remains the appropriate standard for evaluating delegations of legislative power when the resulting regulations define the elements of a federal crime, or whether the nondelegation doctrine requires a more stringent standard when Congress delegates to the Executive the authority to fix the boundary between lawful conduct and criminal liability.

Whether the intelligible principle test remains the appropriate standard for evaluating delegations of legislative power when regulations define elements of federal crimes, or whether the nondelegation doctrine requires a more stringent standard when Congress delegates to the Executive authority to fix the boundary between lawful conduct and criminal liability