# Data Dictionary - US Federal Contract Awards - monthly obligations by agency, cleaned Parquet

**Units:** all `obligations_usd` values are in **USD**.  Times are UTC.

| column | type | description |
|---|---|---|
| `zone` | str | Awarding federal agency |
| `ts` | timestamp (UTC) | Month |
| `obligations_usd` | float | Contract obligations that month, USD |
| `unit` | str | Unit |
| `res_min` | int | Native resolution (monthly) |

*Source: USAspending.gov (U.S. Department of the Treasury).*