# Commercial Garage Door Maintenance Decision Ledger — Data Dictionary

**Dataset name:** Commercial Garage Door Maintenance Decision Ledger  
**Version:** 1.0.0  
**Canonical page:** https://uptimedockanddoor.com/research/commercial-garage-door-maintenance-checklist/  
**Last verified:** September 19, 2026  
**Record count:** 68 decision rows  
**Source count:** 11 registered sources  
**Geographic scope:** United States; federal OSHA context only where expressly cited  
**Equipment scope:** Commercial sectional overhead doors and their powered commercial door operators.  
**Excluded equipment:** Rolling steel service doors, rolling sheet doors, rolling fire doors, high-speed doors, automatic pedestrian doors, residential garage doors, dock levelers, and vehicle restraints.  
**Publisher:** Uptime Dock & Door Research, the research and reference section of uptimedockanddoor.com.  
**Method:** Source-grounded synthesis of issuer-hosted manufacturer guidance, DASMA technical material, OSHA material, and an official UL Solutions summary. No door was inspected or tested.

## Important use limits

- The installed door, operator, and safety-device manuals control model-specific tasks and test procedures, subject to applicable law, adopted code, listing conditions, and the employer's safety program.
- A generic row does not authorize a person to perform work outside their training, employer policy, manufacturer instructions, or applicable law.
- `Out of Service` is an editorial/site status label, not a substitute for OSHA lockout/tagout during covered servicing.
- Manufacturer guidance applies only to the named manufacturer/product scope.
- No blanket reuse license is asserted for version 1.0.0. Third-party source material remains subject to its publisher's rights and terms.
- The dataset is a reference and planning aid, not an inspection report, engineering opinion, legal advice, certification, or proof of compliance.

## Evidence types

- `Source-reported` — the row faithfully reports a manufacturer, agency, association, or standards-publisher statement within its stated scope.
- `Source-reported + Uptime synthesis` — a verified source fact is combined with Uptime's conservative role, status, or next-action framework.
- `Uptime synthesis` — the row is an editorial workflow, data-design, or decision framework assembled from verified source boundaries. It is not represented as a manufacturer or government requirement.

No row in this version is labeled `Calculated`. The page contains no service-interval calculator and no invented engineering threshold.

## Decision-ledger fields

| Field | Meaning |
|---|---|
| `task_id` | Stable row identifier, `CGD-001` through `CGD-068`. |
| `phase` | Workflow stage used for filters and page sections. |
| `schedule_trigger` | When to consider the row. It may be time-, cycle-, condition-, event-, or task-driven. |
| `component` | Door/operator component or record type. |
| `observation_or_task` | The action, observation, or decision the row describes. |
| `applies_to` | Equipment or configuration scope. |
| `permitted_role` | Conservative public role boundary. It does not replace employer qualification rules. |
| `normal_finding` | Expected condition or evidence when no exception is found. |
| `red_flag_or_stop_use` | Condition that calls for stopping the test, restricting normal use, or escalating. |
| `immediate_action` | Next action stated without repair instructions. |
| `evidence_type` | One of the three evidence categories defined above. |
| `frequency_basis` | Source and logic behind the interval or trigger; often model-specific rather than universal. |
| `source_keys` | One or more keys resolving to `commercial-garage-door-maintenance-source-register.csv`. |
| `source_locators` | Heading, page, clause, or section used. |
| `scope_notes` | Limitation that must remain attached to the row. |
| `verification_date` | Date the cited source content was checked. |

## Interval-crosswalk fields

| Field | Meaning |
|---|---|
| `source_key` | Key resolving to the source register. |
| `publisher` | Issuer of the source. |
| `equipment_scope` | Product/configuration to which the trigger applies. |
| `activity` | Maintenance or testing activity. |
| `published_trigger` | Exact time, cycle, task, or scope trigger. |
| `evidence_type` | Source-reported or source-reported plus synthesis. |
| `exact_locator` | Heading, page, or clause used. |
| `what_it_does_not_mean` | Limitation that prevents universalizing the source. |
| `verification_date` | Date checked. |

## Recommended page filters

- Phase
- Door/operator scope
- Permitted role
- Trigger type
- Component
- Stop-use rows only
- Source key
- Evidence type

## Suggested facility status values

1. **Pass** — no exception observed under the assigned procedure.
2. **Monitor** — a non-stop-use condition documented for a defined recheck.
3. **Work Order** — qualified evaluation or service is required, but written site policy still permits a stated operating mode.
4. **Out of Service** — normal operation is prevented pending qualified release. This is not a LOTO designation.

## Missing-value rules

- Unknown is blank or the explicit text `Unknown`; never convert it to zero, pass, or not applicable.
- A missing manual or revision blocks model-specific hands-on work.
- A skipped item records the reason: `Not installed`, `Not accessible without service work`, `Correct procedure unavailable`, or `Unsafe to observe`.
- A symptom is not converted into a failed part.
- A missing or suppressed value is not zero.

## Matching public files

- `commercial-garage-door-maintenance-decision-ledger.csv`
- `commercial-garage-door-maintenance-decision-ledger.json`
- `commercial-garage-door-maintenance-interval-crosswalk.csv`
- `commercial-garage-door-maintenance-source-register.csv`
- `commercial-garage-door-maintenance-data-dictionary.md`

## Private audit file

- `commercial-garage-door-maintenance-claim-ledger.csv` — audit and implementation evidence. Keep it out of the public download table and Dataset distributions unless the publisher deliberately chooses to expose it later.

## Suggested citation

Uptime Dock & Door Research. *Commercial Garage Door Maintenance Decision Ledger*. Version 1.0.0. Last verified September 19, 2026. https://uptimedockanddoor.com/research/commercial-garage-door-maintenance-checklist/

No license is asserted for version 1.0.0, and no reuse rights are granted or claimed over the underlying source documents.