| 40:22.0.1.1.4.2.1.1 | SECTION 90.101
| 90.101 Applicability. | |
| 40:22.0.1.1.4.2.1.2 | SECTION 90.102
| 90.102 Definitions. | |
| 40:22.0.1.1.4.2.1.3 | SECTION 90.103
| 90.103 Exhaust emission standards. | |
| 40:22.0.1.1.4.2.1.4 | SECTION 90.104
| 90.104 Compliance with emission standards. | |
| 40:22.0.1.1.4.2.1.5 | SECTION 90.105
| 90.105 Useful life periods for Phase 2 engines. | |
| 40:22.0.1.1.4.2.1.6 | SECTION 90.106
| 90.106 Certificate of conformity. | |
| 40:22.0.1.1.4.2.1.7 | SECTION 90.107
| 90.107 Application for certification. | |
| 40:22.0.1.1.4.2.1.8 | SECTION 90.108
| 90.108 Certification. | |
| 40:22.0.1.1.4.2.1.9 | SECTION 90.109
| 90.109 Requirement of certification - closed crankcase. | |
| 40:22.0.1.1.4.2.1.10 | SECTION 90.110
| 90.110 Requirement of certification - prohibited controls. | |
| 40:22.0.1.1.4.2.1.11 | SECTION 90.111
| 90.111 Requirement of certification - prohibition of defeat devices. | |
| 40:22.0.1.1.4.2.1.12 | SECTION 90.112
| 90.112 Requirement of certification - adjustable parameters. | |
| 40:22.0.1.1.4.2.1.13 | SECTION 90.113
| 90.113 In-use testing program for Phase 1 engines. | |
| 40:22.0.1.1.4.2.1.14 | SECTION 90.114
| 90.114 Requirement of certification - engine information label. | |
| 40:22.0.1.1.4.2.1.15 | SECTION 90.115
| 90.115 Requirement of certification - supplying production engines upon request. | |
| 40:22.0.1.1.4.2.1.16 | SECTION 90.116
| 90.116 Certification procedure - determining engine displacement, engine class, and engine families. | |
| 40:22.0.1.1.4.2.1.17 | SECTION 90.117
| 90.117 Certification procedure - test engine selection. | |
| 40:22.0.1.1.4.2.1.18 | SECTION 90.118
| 90.118 Certification procedure - service accumulation and usage of deterioration factors. | |
| 40:22.0.1.1.4.2.1.19 | SECTION 90.119
| 90.119 Certification procedure - testing. | |
| 40:22.0.1.1.4.2.1.20 | SECTION 90.120
| 90.120 Certification procedure - use of special test procedures. | |
| 40:22.0.1.1.4.2.1.21 | SECTION 90.121
| 90.121 Certification procedure - recordkeeping. | |
| 40:22.0.1.1.4.2.1.22 | SECTION 90.122
| 90.122 Amending the application and certificate of conformity. | |
| 40:22.0.1.1.4.2.1.23 | SECTION 90.123
| 90.123 Denial, revocation of certificate of conformity. | |
| 40:22.0.1.1.4.2.1.24 | SECTION 90.124
| 90.124 Request for hearing. | |
| 40:22.0.1.1.4.2.1.25 | SECTION 90.125
| 90.125 Hearing procedures. | |
| 40:22.0.1.1.4.2.1.26 | SECTION 90.126
| 90.126 Right of entry and access. | |
| 40:22.0.1.1.4.2.1.27 | SECTION 90.127
| 90.127 Fuel line permeation from nonhandheld engines and equipment. | |
| 40:22.0.1.1.4.2.1.28 | SECTION 90.128
| 90.128 Installation instructions. | |
| 40:22.0.1.1.4.2.1.29 | SECTION 90.129
| 90.129 Fuel tank permeation from handheld engines and equipment. | |