Program for Application

Application program based on the Building Energy Efficiency Act

"BEST – Building Energy Efficiency Act Adapted Tool" is authorized by the Minister of Land, Infrastructure, Transport and Tourism as a method for properly evaluating building energy consumption performance. It can be used for the system of Mandatory Compliance with Energy Efficiency Standards, Performance Improvement Planning Certification System and Labeling System for Energy Efficiency, which are stipulated by the Building Energy Efficiency Act.


Use of the program

We released "BEST – Building Energy Efficiency Act Adapted Tool Ver3.0.2" in April, 2019.

If you register as a BEST user, anyone can use it.


Provision of technical information

Please refer to the "BEST – Building Energy Efficiency Act Adapted Tool" manual below.


"BEST - Building Energy Efficiency Act Adapted Tool" has data compatibility with "BEST Design Tool"

For First Time User