1001 Smart Cities
🇰🇷 Seoul

Weight-Based Food Waste Fee (RFID Smart Bins)

🤖 AI-generated summary · ◆ 11 sourced claims · 🔎 Last verified

This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.

11 sourced claims on this page, none individually verified yet — turn on “Sources in the text” to see each one.

How this atlas is made · What “last verified” means · What “source-checked” means · The full record behind this page

✎ Corrected 27 Sep 2026 1 source added. · 2 revisions in all What changed →

Residents tap a card and the bin weighs what they throw away, billing by weight. The point is not the sensor: under the old shared charge, a household that threw away less paid exactly the same.

Outcome🎯 Succeeded
Evidence🔬 Peer-reviewed
what does this mean?The strongest source behind this entry is an independent peer-reviewed or academic study. It grades who did the looking — not how well the project went. All four grades →
Run bySeoul Metropolitan Government
Scale🏙️ City-wide

Part of 1001 Smart Cities — 1,216 documented projects · 🏙️ 8 more in Seoul · 🗑️ Waste & recycling guide · 🌱 Environment projects

Since 2013, under a nationwide mandate, Seoul households pay for food waste by the amount they throw away: through standard bags, chipped containers or, in some apartment blocks, RFID-tagged bins where residents tap an ID card and the bin weighs each deposit and bills the household by weight. The RFID design targets free-riding - under the shared charge it replaced, a household that threw away less still paid the same.

Live 📅 since 2013

📊 Impact

A peer-reviewed natural experiment in Mapo-gu compared 12 apartment complexes that switched to RFID weight charging in January 2016 with 61 that kept the shared building charge, and found the weight system reduced significantly more food waste. Seoul's own policy platform reports that the switch from volume to weight cut food waste by 10 to 30%, citing a 2013 study.

🎓 Lesson

The bin is not the intervention; the bill is. Under the shared charge every household paid the same divided total, so throwing away less saved a household nothing; weighing at the bin makes each household's own waste its own cost, and the study names reduced free-riding as the mechanism. The limit is cost, not principle - the weighing system is installed only in some apartment complexes, while detached houses and restaurants use standard bags or chipped containers. Since 2026 the city also pays the other way on the same weighing data: households on RFID bins that cut their food waste by 10 to 30 percent or more on the previous year earn Eco Mileage points, in a scheme capped at 1,000 households per half-year.

🌱 EnvironmentWaste & recyclingSensors & IoTCircular economy

Sources

↗ Lee & Jung 2017, Sustainability - natural experiment on RFID weight charging (peer-reviewed)Published 8 November 2017Difference-in-differences comparison of 12 Seoul apartment complexes that adopted RFID weight charging against 61 that did not, published 8 November 2017.
↗ Seoul Solution - Pay-as-you-throw system of Seoul (authority)Published 13 January 2017 · updated 12 June 2018The city's own policy account of the fee system: the reported reduction from the volume-to-weight switch, and which households the weighing system actually covers.
↗ Korea Environment Corporation (KECO) - RFID-Based Food Waste Management SystemThe national agency's description of how the RFID weighing system works. A standing programme page with no publication date.
↗ Lee et al. 2024, Sustainability - food waste recycling in South Korea (peer-reviewed review)Published 19 January 2024Review of South Korea's food waste recycling regime; it dates the nationwide rollout of the weight-based food waste fee to 2013, the national mandate the Seoul scheme sits inside.
↗ The Korea Herald - Why Seoul is paying residents to throw away less food (17 Dec 2025)Reports Seoul's food waste reduction points system: households on RFID weighing bins that cut their food waste against the previous year earn Eco Mileage points, with participation capped at 1,000 households per half-year.

📅 How old is the evidence?

Two clocks, kept apart: when this entry’s sources were published, and what has happened to its record in the atlas. Documented span: since 2013. 4 of 5 sources carry a publication date, from 13 January 2017 to 17 December 2025.

When the sources were published

  1. Seoul Metropolitan Government · city governmentSeoul Solution - Pay-as-you-throw system of Seoul (authority) · updated 12 June 2018
  2. MDPI · researchLee & Jung 2017, Sustainability - natural experiment on RFID weight charging (peer-reviewed)
  3. MDPI · researchLee et al. 2024, Sustainability - food waste recycling in South Korea (peer-reviewed review)
  4. The Korea Herald · pressThe Korea Herald - Why Seoul is paying residents to throw away less food (17 Dec 2025)

Every source, with links ↑

What happened to this record

  1. Entered the record
  2. Publication date recorded for 4 sources
  3. 1 source added
  4. Sources last read

Every revision, permanent →

Show your work What this page rests on and what it can’t tell you · all 11 claims with their sources · the forensic record

Evidence file · public beta 11 addressable claims, 5 source dossiers, one permanent baseline. The file is unreviewed — an AI-assisted structural migration, not a human or expert endorsement. Every revision keeps a permanent copy under revision history.

Inspect the claims, one by one — verbatim text, sources and caveats for all 11

The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.

Claim 1 clm-7c554a9b9d61ee1d quantitative
Since 2013, under a nationwide mandate, Seoul households pay for food waste by the amount they throw away
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
Seoul's policy account dates the food waste fee in Seoul to 2013; the review dates the nationwide rollout of the weight-based food waste fee to the same year, so the Seoul scheme implements a national rule rather than a city invention.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Seoul Solution - Pay-as-you-throw system of Seoul (authority)
  2. Lee et al. 2024, Sustainability - food waste recycling in South Korea (peer-reviewed review)
Claim 2 clm-a2c9da32bfaa667b descriptive
through standard bags, chipped containers or, in some apartment blocks, RFID-tagged bins
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The city's account lists the three disposal routes for food waste and says the weighing system is installed only in some apartment complexes.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Seoul Solution - Pay-as-you-throw system of Seoul (authority)
Claim 3 clm-bd7d9f0351afccef descriptive
residents tap an ID card and the bin weighs each deposit and bills the household by weight
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The city describes the card swipe that opens the bin and the monthly accumulation of fees; the national agency describes automatic per-household measurement and charging by weight.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Seoul Solution - Pay-as-you-throw system of Seoul (authority)
  2. Korea Environment Corporation (KECO) - RFID-Based Food Waste Management System
Claim 4 clm-5db2f310af34d55b descriptive
The RFID design targets free-riding
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The study frames the RFID charge as a redesign of the incentive that reduces free riding by identifying each resident's disposal electronically.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Lee & Jung 2017, Sustainability - natural experiment on RFID weight charging (peer-reviewed)
Claim 5 clm-375ffb976ccb5506 descriptive
under the shared charge it replaced, a household that threw away less still paid the same
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The study describes the predecessor as a complex-wide charge divided equally among households; the city describes a flat rate per household regardless of the amount generated.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Lee & Jung 2017, Sustainability - natural experiment on RFID weight charging (peer-reviewed)
  2. Seoul Solution - Pay-as-you-throw system of Seoul (authority)
Claim 6 clm-24d56524938dfc6e quantitative
A peer-reviewed natural experiment in Mapo-gu compared 12 apartment complexes that switched to RFID weight charging in January 2016 with 61 that kept the shared building charge
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The abstract names the Mapo-Gu district, the 12 treatment and 61 control complexes, and the January 2016 switch.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Lee & Jung 2017, Sustainability - natural experiment on RFID weight charging (peer-reviewed)
Claim 7 clm-97c248ec2bff53e6 descriptive
found the weight system reduced significantly more food waste
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
Using propensity score matching and difference-in-differences, the study reports a significant difference and that the weight-based design reduces more food waste than the shared charge.
Caveat
The abstract states significance and direction but no effect size; the entry therefore states neither.

Sources carrying this claim

  1. Lee & Jung 2017, Sustainability - natural experiment on RFID weight charging (peer-reviewed)
Claim 8 clm-5bca569fe24328f0 quantitative
Seoul's own policy platform reports that the switch from volume to weight cut food waste by 10 to 30%, citing a 2013 study
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The city platform reports the 10 to 30% reduction from moving food waste charging from volume to weight, citing a December 2013 study by the Korea Institute of Industrial Relations and the Korea Environment Corporation.
Caveat
A figure the city platform repeats from a 2013 study rather than one it measured itself; the range is wide and the study is not linked.

Sources carrying this claim

  1. Seoul Solution - Pay-as-you-throw system of Seoul (authority)
Claim 9 clm-b68d3647a347a9af descriptive
the study names reduced free-riding as the mechanism
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The study's conclusion attributes the effect to reduced free riding once each resident's disposal is identified electronically.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Lee & Jung 2017, Sustainability - natural experiment on RFID weight charging (peer-reviewed)
Claim 10 clm-61dca69d03c63716 descriptive
the weighing system is installed only in some apartment complexes, while detached houses and restaurants use standard bags or chipped containers
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The city says the system is used only in some apartment complexes because installation and operation are costly and need space, and that detached houses and restaurants generally use standard bags or chipped containers.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Seoul Solution - Pay-as-you-throw system of Seoul (authority)
Claim 11 clm-d2a42d916a8253c3 quantitative
households on RFID bins that cut their food waste by 10 to 30 percent or more on the previous year earn Eco Mileage points, in a scheme capped at 1,000 households per half-year
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The report describes the reward scheme announced by the city in December 2025: RFID-bin households cutting food waste against the same period a year earlier earn Eco Mileage points, with participation limited to 1,000 households each half-year and applications for the first half of 2026 opening in January.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. The Korea Herald - Why Seoul is paying residents to throw away less food (17 Dec 2025)
Forensic record — source dossiers, gaps, hashes and the exact revision this page renders

This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.

unreviewed Revision 2026-09-27-popular-uplift-2 effective 2026-09-27 · created 2026-09-27

Awaiting operator and domain-expert review; publication of this revision implies neither.

sha256:320c7fc87c1fcd0a7b10e151c95d34279f27f5b7ba38936829f37be7b9853130
Revision history → Permanent version link → Machine-readable record → Evidence Constitution →
11
of 11 claims mapped
5
source dossiers
4
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Governance facts carried by the record

Operator
Seoul Metropolitan Government
Actor types
city-government
Funding model
public
Funding description
Not recorded
Cost
Not recorded
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

5 source dossiers

Lee & Jung 2017, Sustainability - natural experiment on RFID weight charging (peer-reviewed) mdpi.com · 5 linked claims

Open original source ↗

Stable source ID
src-981ee3108b47efdb
Publisher
Name not classified · mdpi.com
Type / language
web-page · language not classified
Published
2017-11-08
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Difference-in-differences comparison of 12 Seoul apartment complexes that adopted RFID weight charging against 61 that did not, published 8 November 2017.

Descriptive only — not page/paragraph exact
Claims linked
Seoul Solution - Pay-as-you-throw system of Seoul (authority) seoulsolution.kr · 6 linked claims

Open original source ↗

Stable source ID
src-5e6968da231b6b47
Publisher
Name not classified · seoulsolution.kr
Type / language
web-page · language not classified
Published
2017-01-13
Updated
2018-06-12
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

The city's own policy account of the fee system: the reported reduction from the volume-to-weight switch, and which households the weighing system actually covers.

Descriptive only — not page/paragraph exact
Claims linked
Korea Environment Corporation (KECO) - RFID-Based Food Waste Management System keco.or.kr · 1 linked claim

Open original source ↗

Stable source ID
src-52f2e52acbd4f56a
Publisher
Name not classified · keco.or.kr
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

The national agency's description of how the RFID weighing system works. A standing programme page with no publication date.

Descriptive only — not page/paragraph exact
Claims linked
Lee et al. 2024, Sustainability - food waste recycling in South Korea (peer-reviewed review) mdpi.com · 1 linked claim

Open original source ↗

Stable source ID
src-e11b4b1f3eb223a3
Publisher
Name not classified · mdpi.com
Type / language
web-page · language not classified
Published
2024-01-19
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Review of South Korea's food waste recycling regime; it dates the nationwide rollout of the weight-based food waste fee to 2013, the national mandate the Seoul scheme sits inside.

Descriptive only — not page/paragraph exact
Claims linked
The Korea Herald - Why Seoul is paying residents to throw away less food (17 Dec 2025) koreaherald.com · 1 linked claim

Open original source ↗

Stable source ID
src-7e152bee1a30c251
Publisher
Name not classified · koreaherald.com
Type / language
web-page · language not classified
Published
2025-12-17
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-09-27
Dossier created
2026-09-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Reports Seoul's food waste reduction points system: households on RFID weighing bins that cut their food waste against the previous year earn Eco Mileage points, with participation capped at 1,000 households per half-year.

Descriptive only — not page/paragraph exact
Claims linked
Known limits of this file
  • Publisher names and source languages have not yet been classified; domains are recorded without guessing.
  • Existing source notes are descriptive locators, not page- or paragraph-exact citations.
  • A missing archive, publication date or content hash is shown as null rather than inferred.
  • The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim.

Continue exploring

Compare this project

🇰🇷 Owl Bus (Night Bus) — Big-Data Route Design · Seoul Two Seoul data projects a decade apart: Owl Bus mined call records for night buses (2013), this weighs food waste by the kilogram. 🇨🇿 Golemio Urban Waste Sensor Mesh · Prague Different levers on the same problem: Seoul prices food waste by weight, Prague just senses when bins are full. 🇸🇬 National Steps Challenge & HealthHub Digital Health · Singapore Nudging habits opposite ways: Seoul bills food waste by the kilo (2013); Singapore's Steps Challenge rewards activity with points (2015).

What does a resident get for separating their waste?

The topic guide asks where the meter sits. This asks the question from the kitchen: four cities, four completely different things offered to the person doing the sorting — and one of them is nothing at all.

ProjectSinceStatusOutcomeEvidenceRun byCostWhat the resident gets
Weight-Based Food Waste Fee (RFID Smart Bins)Seoul, 🇰🇷 2013 Live Succeeded Peer-reviewed City government not public A bill. The resident taps an ID card, the bin weighs the deposit and charges by the kilogram, replacing a flat fee folded into building charges.
Suroboyo Bus — Plastic-Bottle Fare TransitSurabaya, 🇮🇩 2018 Live Scaled back Media City government, Utility or public operator not public A bus ride — bottles for a two-hour ticket. The entry's own verdict is that the gimmick drew the attention and an ordinary cash fare kept the line running.
Buenos Aires's Registered Recuperadores Urbanos & Green CentresBuenos Aires, 🇦🇷 2002 Live Ongoing Peer-reviewed City government, Civil society not public A livelihood. After the crisis the city stopped policing its waste pickers and registered them instead, writing them into the collection service.
Optical Waste Sorting by Bag Colour (Haraldrud & Klemetsrud)Oslo, 🇳🇴 2009 Live Ongoing Official City government, Private company not public Nothing. Bag colour chosen at the kitchen counter is the whole interface, the machine sorts what arrives correctly, and the bottleneck stays upstream.

Explore the wider context

🗑️ Pipes or pennies📖 Pay-as-you-throw (PAYT)📖 Pneumatic waste collection📖 Adaptive traffic signals
📎 Cite this project

1001 Smart Cities (2026). “Weight-Based Food Waste Fee (RFID Smart Bins)” — Seoul, South Korea. The Smart City Atlas. https://1001smartcities.org/projects/seoul-food-waste-payt/ (last verified 2026-09-27). Data: CC BY 4.0.

The underlying data is free to reuse with attribution — see the open data page.

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