[Announcement] Renewal of Web Service Portal

The log-in system for Web Service Portal will be changed

Starting September 28, 2025, the log-in system for Web Service Portal will shift from organization-based to individual email-based.
Prior to this change, we will open a pre-registration site for Web Service Portal users to register email addresses.
Please be aware that you may not be able to log-in our services after September 28, 2025 if you have not completed your pre-registration.

The services that require email address pre-registration are listed in "Service List for Pre-registration."
Service List for Pre-registration is available from the following link: Service List for Pre-registration

Request for Pre-registration of Email Address

  • To ensure a smooth transition to the new log-in system, please pre-register your email address.
  • A special site for pre-registration will be opened. Follow the instructions provided in the upcoming information.
  • Pre-registration period: June 15, 2025 – September 14, 2025.
NKAuth

To access the email address pre-registration site, please log-in to ClassNK Customer Hub(Web Service Portal) and click the "Register" button.

For detailed instructions on how to log-in and how to register on the pre-registration site, please refer to "Email Pre-registration Instruction."
You can find details about the types of accounts for the new log-in system on Account Type and Permissionon this page.
Email Pre-registration Instruction is available from the following link: Email Pre-registration Instruction

New Log-in System

  • Log-in ID will be individual accounts for each person. (Currently per organization / company.)
  • Enable to access multiple services of Web Service Portal with a single log-in, without needing separate log-in for each service.
  • Current organizational information and service usage history will be retained, allowing continued use of services without reconfiguration.
NKAuth pre-registration

Overview of the change in the log-in system and the main changes are introduced in "Information about changing log-in for ClassNK Services."
Information about changing log-in for ClassNK Services is available from the following link:Information about changing log-in for ClassNK Services

Account type permission

In the new log-in system, user permissions on the Customer Hub will be categorized into three types: 'Administrator', 'Normal User', and 'Visitor User'.

Permission Administrator Normal User Visitor User
Log-in to Customer Hub
Log-in to NK services
New application for NK service usage
Add(invite), edit, and delete users
Edit user information〇*〇*

*Only the user's own information can be edited.

Please refer to "Account Management for New Log-in System" for account management with the new log-in system and the differences between account types.
Account Management for New Log-in System is available from the following link: Account Management for New Log-in System

NEWS

13 June 2025
Released detailed information and instruction manual for email address pre-registration

FAQ

We have provided frequently asked questions about changing the log-in system.
Q&A list

Address and Contact Details

NIPPON KAIJI KYOKAI(ClassNK)
CCH Portal Account Helpdesk

Contact form: https://forms.office.com/r/1cPRhM26MH
E-Mail: cch-portal@classnk.or.jp