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The citizen top > Work, industry > Bid, contract information > About observance of a contract, inspection of contract > Construction by-product

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Update day: January 10, 2017

Construction by-product

Construction by-product means construction outbreak soil provided with construction subsidiarily and construction waste.

  • Construction outbreak soil…We say the earth and sand provided with construction subsidiarily.
  • Construction waste…Among construction by-products, thing corresponding to waste (asphalt concrete lump, concrete - to lump, construction sludge, construction outbreak wood, construction mixture waste) to prescribe for method of waste disposal is called.

We push forward recycling in the whole country and, about these construction by-products, perform approach for the formation of recycling society.

We perform fact-finding of construction by-product for city ordering construction to grasp the recycling situation of construction by-product to approach of country and prefecture in this city, and to aim at promotion of further recycling.

Target construction

By construction that city placed an order for, the last construction contract amount of money is all construction more than 1 million yen regardless of big things and small things of quantity of use of construction material and big things and small things of presence, construction by-product generating quantity, export quantity and presence.


Person of contracting business, please submit data which we made by "construction recycling data unification system CREDAS input system" to the construction person in charge of city about construction that city placed an order for.

In addition, please download "construction recycling data unification system CREDAS input system" from homepage of the Ministry of Land, Infrastructure, Transport and Tourism.

You input with "Ministry of Land, Infrastructure, Transport and Tourism CREDAS system" in search site, and please search downloading.

CREDAS input system revised in October, 2016. Please input in the latest input system.


Position section room: General affairs department contract inspection section searcher

Phone number 0287-62-7115

Fax number: 0287-62-7184

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