40 CFR § 751.109
Recordkeeping
June 9, 2020
(a) Each person who manufactures, processes, or distributes in commerce any methylene chloride after August 26, 2019 must retain in one location at the headquarters of the company, or at the facility for which the records were generated, documentation showing:
(1) The name, address, contact, and telephone number of companies to whom methylene chloride was shipped;
(2) A copy of the notification provided under §751.107; and
(3) The amount of methylene chloride shipped.
(b) The documentation in paragraph (a) of this section must be retained for 3 years from the date of shipment.