To be filled up by the first-time applicant of ISBN.
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ADVISORY
The International Standard Numbering System - Philippine Online Numbering Application System (ins-poas.nlp.gov.ph) will be conducting preventive maintenance and will be temporarily unavailable on the following dates:
December 20, 2024
December 24 to 25
December 28, 2024 to January 01, 2025
Please schedule your transactions accordingly.
We apologize for any inconvenience this downtime may cause and appreciate your understanding as we ensure the reliability and security of the system, especially during the holiday season.
Thank you!