What is a pre-work asbestos survey in Japan?

1. Define the survey scope

Match the survey to the actual work area and every material that may be affected. Record areas that cannot yet be accessed and plan how they will be checked before disturbance.

2. Review documents and inspect the site

Use drawings, specifications, product records, nameplates and renovation history, then compare them with conditions on site. Photographs can document condition but normally cannot confirm asbestos content by themselves.

3. Resolve unknown materials

When document and site evidence do not establish content, the responsible qualified surveyor determines whether analysis or another legally acceptable treatment is needed. Sampling can release fibres and should not be improvised.

4. Report and retain the result

The principal contractor should confirm government reporting thresholds, site display, availability of survey documentation and record retention. Local procedures may add a separate check.

• Survey date, scope and methods
• Surveyor identity and qualification evidence
• Material-by-material findings
• Inaccessible areas and later checks
• Official filing or notice references

Example: the work area changes after the survey

Suppose the original survey covered a bathroom renovation, but the installer later proposes a new pipe route through a corridor wall. This hypothetical example shows a scope question: the bathroom report does not establish what was checked along the new route.

Send the revised drawing to the contractor and surveyor. Ask them to identify which affected materials are already covered, which remain unresolved and how the report will record the revised scope. Keep the original report and the dated response together so the installer can see which version matches the planned work.

A handoff message you can adapt

Please confirm that the survey report covers the attached current work drawing, including any penetrations and concealed areas. Please identify unresolved locations, the person coordinating follow-up and the document we should expect before those locations are disturbed. If the attached laboratory result is only part of the survey record, please provide the report that connects it to the material locations.

Useful Japanese labels are survey report (事前調査報告書), analysis result report (分析結果報告書) and survey scope (調査範囲). Keep a translated summary connected to the original document and its revision date.