| 40:31.0.1.1.18.2.3.1 | SECTION 418.20
| 418.20 Applicability; description of the ammonia subcategory. | |
| 40:31.0.1.1.18.2.3.2 | SECTION 418.21
| 418.21 Specialized definitions. | |
| 40:31.0.1.1.18.2.3.3 | SECTION 418.22
| 418.22 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. | |
| 40:31.0.1.1.18.2.3.4 | SECTION 418.23
| 418.23 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. | |
| 40:31.0.1.1.18.2.3.5 | SECTION 418.24
| 418.24 [Reserved] | |
| 40:31.0.1.1.18.2.3.6 | SECTION 418.25
| 418.25 Standards of performance for new sources. | |
| 40:31.0.1.1.18.2.3.7 | SECTION 418.26
| 418.26 Pretreatment standards for new sources. | |
| 40:31.0.1.1.18.2.3.8 | SECTION 418.27
| 418.27 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. | |