I want to throw away a large amount of garbage at one time due to moving or rearranging belongings

A large amount of garbage due to moving or rearranging belongings is not collected because it is sent to a collection site at once, it will hinder normal collection.
The method of processing such a large amount of garbage is as follows.

About thing which had you sort based on classification rule of Yokohama-shi, you can have you bring in by yourself.

burnable garbage can be brought directly to four incineration plants in the city. You must apply in advance at the Resources and Waste Recycling Bureau office in your ward. In addition, a fee of 13 yen per kilogram will be charged.
For more information, please contact your local Resources and Waste Recycling Bureau office.

Recyclable materials such as recycle paper and plastic containers and packaging can be brought into center recycling,Resources and Waste Recycling Bureau offices in each ward.
For more information, please contact your local Resources and Waste Recycling Bureau office.

oversized garbage can be brought directly to four self-loading yards in the city. Applications must be made in advance at Oversized Garbage Reception Center. In addition, the same fee will be charged as when the city collects.
For more information, please contact Oversized Garbage Reception Center.

Please contact the municipal solid waste collection and transportation business licensed company directly and request disposal.
Or, please refer to Yokohama-shi municipal solid waste permission business cooperative (Phone number: 045-662-2563). We will guide you to a licensed company. In addition, the fee and the type of thing that can be processed vary depending on the trader, so please contact each company.
※Precautions when asking a contractor to sort their belongings or clearing the house

List of Resources and Waste Recycling Bureau Offices
Center recycling
About oversized garbage
List of municipal solid waste disposal business in Yokohama
Precautions when asking a contractor to sort their belongings or clearing the house