40 CFR 262.209 – Where and when to make the hazardous waste determination and where to send containers of unwanted material upon removal from the laboratory
(a) Large quantity generators and small quantity generators—an eligible academic entity must ensure that a trained professional makes a hazardous waste determination, pursuant to § 262.11, for unwanted material in any of the following areas:
(1) In the laboratory before the unwanted material is removed from the laboratory, in accordance with § 262.210;
(2) Within 4 calendar days of arriving at an on-site central accumulation area, in accordance with § 262.211; and
(3) Within 4 calendar days of arriving at an on-site interim status or permitted treatment, storage or disposal facility, in accordance with § 262.212.
(b) Very small quantity generators. An eligible academic entity must ensure that a trained professional makes a hazardous waste determination, pursuant to § 262.11(a) through (d), for unwanted material in the laboratory before the unwanted material is removed from the laboratory, in accordance with § 262.210.