| 101 Short, Sparse, Dry Climate Grass |
| 102 Low Load, Dry Climate Grass |
| 103 Low Load, Very Coarse, Humid Climate Grass |
| 104 Moderate Load, Dry Climate Grass |
| 107 High Load, Dry Climate Grass |
| 108 High Load, Very Coarse, Humid Climate Grass |
| 121 Low Load, Dry Climate Grass-Shrub |
| 122 Moderate Load, Dry Climate Grass-Shrub |
| 141 Low Load Dry Climate Shrub |
| 142 Moderate Load Dry Climate Shrub |
| 144 Low Load, Humid Climate Timber-Shrub |
| 145 High Load, Dry Climate Shrub |
| 147 Very High Load, Dry Climate Shrub |
| 161 Low Load Dry Climate Timber-Grass-Shrub |
| 162 Moderate Load, Humid Climate Timber-Shrub |
| 163 Moderate Load, Humid Climate Timber-Grass-Shrub |
| 165 Very High Load, Dry Climate Timber-Shrub |
| 181 Low Load Compact Conifer Litter |
| 182 Low Load Broadleaf Litter |
| 183 Moderate Load Conifer Litter |
| 186 Moderate Load Broadleaf Litter |
| 188 Long-Needle Litter |
| 189 Very High Load Broadleaf Litter |
| 91 Urban/developed |
| 98 Open Water |
| 99 Bare Ground |