| Symbol | Description | Uses |
| B10EXPS | 2 | |
| B10KDIS | 2 | |
| BACK2GRD | 21 | |
| BAR2 | 56 | |
| BAR2_INIT | 2 | |
| BAR_CHECK | 11 | |
| BARRIER | 3 | |
| BARRIER_INIT | 2 | |
| BARRIER_MS | 1 | |
| BARRIER_MU | 1 | |
| BCDATA | 3 | |
| BCHEADER | 3 | |
| BIO_EXPORT | 2 | |
| BLDEPTH | 2 | |
| BLMIX | 2 | |
| BULKF_AVE | 2 | |
| BULKF_FIELDS_LOAD | 2 | |
| BULKF_FLUX_ADJUST | 2 | |
| BULKF_FORCING | 3 | |
| BULKF_FORMULA_AIM | 3 | |
| BULKF_FORMULA_LANL | 3 | |
| BULKF_FORMULA_LAY | 3 | |
| BULKF_INIT_VARIA | 2 | |
| BULKF_OUTPUT | 2 | |
| BULKF_READPARMS | 2 | |
| BULKF_SH2RH_AIM | 3 |