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Revision of laws and regulations

Last Updated July 19, 2024

It is information and link about revision such as laws and ordinances about regulation of drainage to public sewer.

List of revisions
Date of enforcementOverview of Links and Revisions
April 1, 2024A Cabinet decision to revise a part of the Sewerage Law Enforcement Ordinance was approved by the Cabinet (Cabinet decision) (outside site) (link to the Ministry of Land, Infrastructure, Transport and Tourism)
Overview: Strengthening wastewater standards for hexavalent chromium compounds, etc.
October 21, 2015About Cabinet Order draft to revise a part of the Sewerage Law Enforcement Order (Cabinet decision) (outside site) (link to Ministry of Land, Infrastructure, Transport and Tourism)
Overview: Strengthening wastewater standards for trichloroethylene
December 1, 2014About Cabinet Order to revise a part of the Sewerage Law Enforcement Order (outside site) (link to Ministry of Land, Infrastructure, Transport and Tourism)
Overview: Strengthening wastewater standards for cadmium and its compounds
April 1, 2013About some revisions such as the Yokohama-shi sewer regulations (PDF: 185KB)
Overview: 1,4-Standards for setting up abatement facilities for dioxane
May 25, 2012About Cabinet decision of Cabinet Order to revise a part of the Sewerage Law enforcement order (outside site) (link to Ministry of Land, Infrastructure, Transport and Tourism)
Overview: 1,4-Addition of dioxane standards, etc.
May 25, 2012Revision of the Water Pollution Control Law Enforcement Order
Overview: 1,4-Addition of specific facilities for geoxane, etc.
November 1, 2011A Cabinet decision to revise a part of the Sewerage Law Enforcement Ordinance was approved by the Cabinet (outside site) (link to the Ministry of Land, Infrastructure, Transport and Tourism)
Overview: Relaxing standards for 1,1-dichloroethylene, etc.
October 1, 2009About partial revision such as Yokohama-shi sewer regulations
Overview: Adding standards for nitrogen content, etc.
December 11, 2006Revision of the Sewerage Law Enforcement Order
Overview: Strengthening wastewater standards for zinc and its compounds, etc.
November 1, 2005Revision of sewerage laws and regulations
Overview: Establishment of provisions for measures in the event of an accident, etc.
July 1, 2001Revision of the Sewerage Law Enforcement Order
Overview: Adding standards for boron and its compounds

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Inquiries to this page

Sewer River Bureau Sewerage Facilities Department Water Quality Section Factory Drainage

Telephone: 045-671-2835

Telephone: 045-671-2835

Fax: 045-550-4183

Email address: gk-kouhai@city.yokohama.lg.jp

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Page ID: 706-749-819

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