40 CFR § 266.350 - What records must you keep at your facility and for how long?
---
identifier: "/us/cfr/t40/s266.350"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 266.350 - What records must you keep at your facility and for how long?"
title_number: 40
title_name: "Protection of Environment"
section_number: "266.350"
section_name: "What records must you keep at your facility and for how long?"
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "I"
subchapter_name: "SOLID WASTES"
part_number: "266"
part_name: "STANDARDS FOR THE MANAGEMENT OF SPECIFIC HAZARDOUS WASTES AND SPECIFIC TYPES OF HAZARDOUS WASTE MANAGEMENT FACILITIES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 1006, 2002(a), 3001-3009, 3014, 3017, 6905, 6906, 6912, 6921, 6922, 6924-6927, 6934, and 6937."
regulatory_source: "50 FR 666, Jan. 4, 1985, unless otherwise noted."
cfr_part: "266"
---
# 266.350 What records must you keep at your facility and for how long?
In addition to those records required by your NRC or NRC Agreement State license, you must keep records as follows:
(a) You must follow the applicable existing recordkeeping requirements under 40 CFR 264.73, 40 CFR 265.73, and 40 CFR 268.7 of this chapter to demonstrate that your waste has met LDR treatment standards prior to your claiming the exemption.
(b) You must keep a copy of all notifications and return receipts required under §§ 266.355, and 266.360 for three years after the exempted waste is sent for disposal.
(c) You must keep a copy of all notifications and return receipts required under § 266.345(a) for three years after the last exempted waste is sent for disposal.
(d) You must keep a copy of the notification and return receipt required under § 266.345(b) for three years after the exempted waste is sent for disposal.
(e) If you are not already subject to NRC, or NRC Agreement State equivalent manifest and transportation regulations for the shipment of your waste, you must also keep all other documents related to tracking the exempted waste as required under 10 CFR 20.2006 or NRC Agreement State equivalent regulations, including applicable NARM requirements, in addition to the records specified in § 266.350(a) through (d).