Subpart YY - Caprolactam, Glyoxal, and Glyoxylic Acid Production
This page provides resources for subpart YY reporters, including implementation information as well as supporting documents for relevant rulemakings.
Summary
This source category applies to any facility that produces caprolactam (C6H11NO), glyoxal (C2H2O2), or glyoxylic acid (C2H2O3), but excludes the production of C2H2O2 through the LaPorte process (i.e., the gas-phase catalytic oxidation of ethylene glycol (C2H6O2) with air in the presence of a silver (Ag) or copper (Cu) catalyst).
Reporter Resources
Subpart YY Regulatory History
| Federal Register Date | Citation | Action | Description | First reporting year impacted |
|---|---|---|---|---|
| 4/25/2024 | 89 FR 31802 | Final Rule |
Updates global warming potentials (GWPs), expands the GHGRP to new source categories, and revises the requirements for certain sectors to improve the data collected and program implementation. |
2025 |