Subpart WW - Coke Calciners
This page provides resources for subpart WW reporters, including implementation information as well as supporting documents for relevant rulemakings.
Summary
This source category applies to facilities that use coke calciners to heat petroleum coke to high temperatures and remove impurities or volatile substances in petroleum coke feedstock. Coke calciners are process units that include rotary kilns, rotary hearth furnaces, or similar process units used to calcine petroleum coke as well as afterburners, or other emission control systems, used to treat a coke calcining unit’s process exhaust gas.
Reporter Resources
Subpart WW 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 |