| EIN | Employer Identification Number | Employer identification number. | |
| FisYr | Fiscal year | Fiscal year (ending year) | |
| NAME | Name of organization | Organization name. | |
| STATE | State | Two-letter state abbreviation. | |
| zip5 | Zip code, 5 digits | First 5 digits of zip code | |
| FIPS | State + County FIPS code | 2-digit State + 3-digit County FIPS code (Federal Information Processing Standard). See also U.S. Census Bureau State & County QuickFacts. | |
| NPCRa | NPC codes | All assigned NPCs reduced to common 5-digit roots | |
| NPC_BEN | Beneficiary codes | NPC Beneficiary codes | |
| ruleID | NPC Rule ID | ID of rule used for assigning rule-based NPC code | |
| PRGID2 | Unique Program ID | Unique program ID (NCCS auto-assigned integer) | |
| Largest | Largest Program? | Largest program? | |
| COMMONCODE | Common Code | NPC Common Code | |
| RandNum | Random number between 0 and 1 | Random number between 0 and 1 used for creating samples | |