Part 3 MATERIAL BALANCE REPORT (MBR)
Original text. Later amendments are not shown.
| Label/tag | Content | Comments | # |
| MBA | Character (4) | MBA code of reporting MBA | 1 |
| Report type | Character (1) | M for Material Balance Report | 2 |
| Report date | DDMMYYYY | Date on which the report was completed | 3 |
| Start report | DDMMYYYY | Starting date of MBR (date of last PIT +1 day) | 4 |
| End report | DDMMYYYY | End date of MBR (date of current PIT) | 5 |
| Report number | Number (8) | Sequential number, no gaps | 6 |
| Element category | Character (1) | Category of qualifying nuclear material | 7 |
| Line count | Number (8) | Total number of lines reported | 8 |
| Reporting person | Character (30) | Name of person responsible for report | 9 |
| IC code | Character (2) | Type of inventory change | 10 |
| Line number | Number (8) | Sequential number, no gaps | 11 |
| Element weight | Number (24.3) | Element weight | 12 |
| Isotope | Character (1) | G for U-235, K for U-233, J for a mixture of U-235 and U-233 | 13 |
| Fissile weight | Number (24.3) | Weight of fissile isotope | 14 |
| Obligation | Character (2) | Safeguards obligation | 15 |
| Correction | Character (1) | D for deletions, A for additions forming part of a deletion/addition pair, L for late lines (stand-alone additions) | 16 |
| Previous report | Number (8) | Report number of line to be corrected | 17 |
| Previous line | Number (8) | Line number of line to be corrected | 18 |
| Comment | Character (256) | Operator comment | 19 |
| CRC | Number (20) | Hash code of line for quality control purposes | 20 |
| Previous CRC | Number (20) | Hash code of line to be corrected | 21 |





