illegal drug

(B)The term “illegal drug” means a controlled substance but does not include a controlled substance that is legally possessed or used under the supervision of a licensed health-care professional or that is legally possessed or used under any other authority under that Act [et seq.] or under any other provision of Federal law.

Source

20 USC § 1415(k)(7)(B)


Scoping language

None: Default is title Scope
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