Section 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 .73 FR 72954, Dec. 1, 2008, as amended at 81 FR 85820, Nov. 28, 2016