The following groups of companies are required to report 313 chemicals to the EPA.
| NAICS Code | Description | Number of Reporting Facilities |
|---|---|---|
| 2121 | Coal Mining | 61 |
| 2122 | Metal Mining | 70 |
| 2211 | Electric Utilities | 636 |
| 311/312 | Food/Bev & Tobacco | 1632 |
| 313/314 | Textiles | 172 |
| 315 | Apparel | 4 |
| 316 | Leather | 28 |
| 321 | Wood Products | 662 |
| 322 | Paper | 402 |
| 323/51 | Printing & Publishing | 167 |
| 324 | Petroleum | 632 |
| 325 | Chemicals | 3444 |
| 326 | Plastics & Rubber | 1345 |
| 327 | Stone, Clay & Glass | 1244 |
| 3273 | Cement | 109 |
| 331 | Primary Metals | 1534 |
| 332 | Fabricated Metals | 2846 |
| 333 | Machinery | 997 |
| 334 | Computers/Electronics | 959 |
| 335 | Electrical Equipment | 567 |
| 336 | Transportation Equipment | 1251 |
| 337 | Furniture | 185 |
| 339 | Miscellaneous Manufacturing | 362 |
| 4247 | Petroleum bulk Terminals | 525 |
| 562 | Hazardous Waste/Solvent Recovery | 230 |