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Recordkeeping and Reporting
EPA has promulgated a series of regulations to phase out the production and import of class I ozone depleting substances (ODSs) including chlorofluorocarbons (CFCs) and class II ODSs which are hydrochlorofluorocarbons (HCFCs). The regulations include reporting and recordkeeping requirements for producers, importers, and exporters of class I and class II substances. EPA provides reporting forms and instructions to assist entities in fulfilling these requirements.
EPA also offers Electronic Reporting for quicker, simpler data submissions.
Overview of Reporting Control Periods
| Control Period | Dates |
| Quarter 1 | January 1 - March 31 |
| Quarter 2 | April 1 - June 30 |
| Quarter 3 | July 1 - Sept. 30 |
| Quarter 4 | October 1 - Dec. 31 |
A detailed control period calendar identifying when specific reports are due is also available.