---
title: "Build a variation chronology from the site correspondence"
url: "https://ailawframework.com/practice/construction-and-infrastructure/draft-a-variation-claim-chronology-from-site-correspondence/united-states"
type: "task_jurisdiction_version"
site: "AI Law Framework"
id: "A11-B8-3-US"
practice_area: "Construction & Infrastructure"
tier: "green"
lawyer_review: "required"
jurisdictions: ["US"]
last_reviewed: "2026-10-22"
---

# Build a variation chronology from the site correspondence

> List each variation request, direction, and reply in date order, with the document name, the date, and the words used for the change. Do not value the variation or write the notice.

Canonical page: https://ailawframework.com/practice/construction-and-infrastructure/draft-a-variation-claim-chronology-from-site-correspondence/united-states  
Last reviewed: 2026-10-22

Site index for agents: https://ailawframework.com/llms.txt

## Key facts

| Fact | Value |
| --- | --- |
| Practice area | [Construction & Infrastructure](https://ailawframework.com/practice/construction-and-infrastructure.md) |
| Human involvement | Green: AI drafts, lawyer checks |
| How AI is used | List each variation request, direction, and reply in date order, with the document name, the date, and the words used for the change. Do not value the variation or write the notice. |
| What the lawyer must review | The chronology quotes the file. The lawyer decides whether the contract required a written direction and whether the notice was in time. On an agency construction contract, 31 U.S.C. § 3905 requires a subcontract clause paying the subcontractor within 7 days out of amounts paid by the agency for satisfactory performance, and it allows a subcontract to retain a specified percentage of a progress payment without a late-payment interest penalty on the terms the parties agree. Formal Opinion 512: dates and quotations are checked before the chronology is sent to the client or used in a claim. |
| Written for | United States |
| Applies to | [Draft a variation-claim chronology from site correspondence](https://ailawframework.com/practice/construction-and-infrastructure/draft-a-variation-claim-chronology-from-site-correspondence.md) |

## Checking plan

- What the AI does: List each variation request, direction, and reply in date order, with the document name, the date, and the words used for the change. Do not value the variation or write the notice.
- Basis: Checked against the linked sources on 22 October 2026. Confirm the current instrument before reliance.

## Notes

- Private and state projects follow their contract and state statutes, which were not opened.
- The chronology is an index. It is not a variation claim.

## Sources

- [31 U.S.C. § 3905, payment provisions relating to construction contracts](https://www.law.cornell.edu/uscode/text/31/3905) (checked 2026-10-22)
- [ABA Formal Opinion 512, Generative Artificial Intelligence Tools (29 July 2024)](https://www.americanbar.org/content/dam/aba/administrative/professional_responsibility/ethics-opinions/aba-formal-opinion-512.pdf) (checked 2026-10-22)
- [ABA Model Rule 1.6, Confidentiality of Information](https://www.americanbar.org/groups/professional_responsibility/publications/model_rules_of_professional_conduct/rule_1_6_confidentiality_of_information/) (checked 2026-10-22)

*Practice guidance for planning and review. Confirm current primary sources and the requirements of the actual matter. This is general information, not legal advice.*