The following guidance materials provide information on the reporting requirements contained in EPA’s mercury inventory reporting rule.

These resources include a compliance guide and user guide for EPA's Mercury Electronic Reporting (MER) application. The MER application can be accessed through the Agency's Central Data Exchange (CDX).

Read frequent questions about the mercury inventory reporting rule.

• Compliance Guide: Reporting Requirements for the Mercury Inventory of the Toxic Substances Control Act (Updated on 2/22/2022) (pdf) (327.12 KB)
• Mercury Electronic Reporting (MER) Application User Guide - Primary Support User (pdf) (3.82 MB)
• Mercury Electronic Reporting (MER) Application User Guide - Primary Authorized Official (pdf) (4.45 MB)
• Mercury Electronic Reporting (MER) Application User Guide - Primary Agent Consultant (pdf) (4.43 MB)