# Relationship history for MSHA mine 2103611

Current hierarchy: **Randy  Timm → Timm's Trucking Inc. → CEC screener**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Timm's Trucking Inc. → CEC screener; 2008-04-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Randy  Timm → CEC screener; 2008-04-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randy  Timm → Timm's Trucking Inc.; 2008-04-28 to current/open; source msha-controller-operator-history