It is a content.

Performance Standard (PS-QZSS) and Interface Specification (IS-QZSS)

  Performance Standard Interface Specification
Satellite Positioning, Navigation and Timing Service PS-QZSS-001
(Draft, July 24, 2017
/ PDF: 1287KB)
IS-QZSS-PNT-001
(March 28, 2017
/ PDF: 3748KB)
Sub-meter Level Augmentation Service (SLAS) IS-QZSS-L1S-001
(March 28, 2017
/ PDF: 709KB)
Centimeter Level Augmentation Service (CLAS) IS-QZSS-L6-001
(Draft, September 15, 2017
/ PDF: 1888KB)
Satellite Report for Disaster and Crisis Management (DC Report) IS-QZSS-DCR-001
(September 22, 2017
/ PDF: 3962KB)
Positioning Technology Verification Service IS-QZSS-TV-001
(Draft, July 12, 2016
/ PDF: 637KB)
  Service Level
Information
Content
Centimeter Level
Augmentation Service
for Experiment
SLI-CLAS-E
(Draft, March 28, 2017
/ PDF: 253KB)
This document defines reference information
such as service area and accuracy
in the Centimeter Level Augmentation Service for Experiment.
For information about the data formats currently available for
the CLAS (technology validation), refer to the
“Data Format Specification” on the Global Positioning
Augmentation Service (GPAS) Corporation website.
https://en.gpas.co.jp/  * Under “SERVICE”