The wireless charger can be regarded as a weak electric field product in Japan. It does not need to submit a report for evidence. The test requirements are as follows:

According to the frequency range of each frequency band, at the distance of 3 meters, the test electric field strength result needs to be within the yellow area, and it is not necessary to submit a report for certification, just self-declaration( https://www.tele.soumu.go.jp/j/ref/material/rule/  )。

However, after the Japanese Ministry of Internal Affairs and Communications conducted a product sampling test, it was found that a large number of products did not meet the requirements.( https://www.tele.soumu.go.jp/j/adm/monitoring/illegal/result/  ) So, for these products, you need to get the ELP logo, as shown below:

In the JAAMA / EMCC two associations, select an accredited laboratory under the association to conduct the test, the test results are in compliance, the laboratory will send a report and log in the product, and after the logo is obtained, the product can be sold on the market. At present, to obtain a Logo, the product needs to be sent to a Japanese laboratory for testing, and the laboratories approved by the two associations are as follows:

JAAMA Test Lab：

http://www.jaama.gr.jp/bijaku/summary/registration.html

EMCC Test Lab：

https://emcc-info.net/elp/registration.html