Japan Waste Disposal Guide Gomi-Sutekata
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Editorial Policy & Data Methodology — Japan Waste Disposal Guide

How we collect, verify, and update waste disposal data for 1,500+ Japanese municipalities. Primary sources, editorial workflow, and error reporting fully disclosed.

  • Updated 2026-06-03
🇯🇵 日本語

About This Page

The Japan Waste Disposal Guide covers waste sorting and collection information for 1,500+ municipalities across Japan. To help readers trust our data, we openly disclose how we collect, verify, and maintain this information.

1. Primary Sources

All sorting categories, collection schedules, and fees on this site are sourced from:

Source Priority

  1. Official municipal websites (.lg.jp / .city.*.jp / .town.*.jp domains)
  2. Official PDFs and sorting guides issued by municipalities
  3. Official sorting apps (government-issued only)
  4. Open data catalogs (e-Stat, BODIK, municipal open data portals)

Sources We Do Not Use

  • Personal blogs, content farm websites
  • Information older than 3 years
  • Unattributed social media posts
  • Commercial comparison sites (secondary sources)

Every item page includes an “Official Sources” section with the exact URLs referenced.

2. Data Collection Pipeline

[1] Crawl municipal sites (URLs managed in data/sources.yaml)
       ↓
[2] Structured extraction via LLM (Claude)
       ↓
[3] Automated validation
   - Hazardous item guard (batteries/spray cans/gas cylinders never as "burnable")
   - Small appliance guard (iron/hair-dryer never as "bulky")
   - Logical sorting consistency check
       ↓
[4] Human review for high-priority cities
       ↓
[5] Publish + update sitemap

Mandatory Validation Rules

Pages cannot be published unless they pass:

  • “Hazardous items” (waste oil, gas cylinders, spray cans, batteries, fluorescent lamps, fire extinguishers) must not be classified as burnable waste
  • “Small appliances” (iron, hair-dryer, game console, smartphone, tablet, thermometer, lighter) must not be classified as bulky waste
  • Phone numbers are extracted from official sources only (LLM generation prohibited; tracked via phone_verified: true)

3. Update Policy

  • Daily 03:00 JST: Automated pipeline re-checks all cities
  • Hourly cron: Detects municipal site changes
  • April annual: Manual review of all articles
  • Within 24 hours: New rule announcements reflected

Each article shows a last updated date and last verified date.

Pages Under Maintenance

When data accuracy is in doubt, we temporarily unpublish the city via our blacklist mechanism rather than display potentially incorrect information.

4. Source Transparency

Every item page’s “Official Sources” section shows:

  • URL of the municipal source
  • Domain name (e.g., city.nagoya.jp)
  • Last verification date

When in doubt, please verify directly with the municipal source.

5. Reporting Errors

We take accuracy seriously, but mistakes can happen. To report:

  • Visit our Contact page with the URL and issue description
  • Most fixes ship within 24-48 hours
  • Providing the official source URL helps us respond faster

6. About the Operation

Field Detail
Site name Japan Waste Disposal Guide
Domain gomi-sutekata.jp
Operator Individual operator
Launched January 2026
Cities covered 1,500+ municipalities (as of June 2026)
Total pages 130,000+ pages (bilingual JA/EN)

7. Advertising & Affiliate Disclosure

This site participates in affiliate programs to support operations:

  • A8.net (Fan Communications, Inc.)
  • afb (ForIT, Inc.)

The “Junk Removal” and “Buyback” CTAs on each item page are sponsored content (PR). When users apply or complete transactions through these links, the site receives referral fees.

No additional cost to users — payment is made by advertisers to the site.

Featured services are selected based on user benefit (not solely commission rates):

  • Nationwide coverage
  • Free appraisal and cancellation
  • Reasonable reputation and brand recognition

Each CTA is clearly labeled “PR / Sponsored” in accordance with Japan’s stealth marketing regulations.

8. Disclaimer

  • All information is an editorial summary of public sources
  • Rules and fees may change; the most authoritative source is always the municipality itself
  • Always confirm with the official site before acting
  • We assume no liability for any damages arising from use of this information
  • For issues with affiliate-linked services, please contact the service provider directly

See Terms of Use for details.