The validation and continual maintenance of chart products are crucial requirements of every hydrographic program.

IIC has unrivalled experience delivering continual maintenance and incremental updating services. IIC can acquire and apply critical and non-critical updates, including NTMs, List of Lights, and new hydrographic and topographic surveys. IIC then formats, processes and deconflicts the sources prior to compilation into ENCs and paper charts.

For validation and verification, IIC ensures that newly produced chart products comply with all applicable national and international specifications and verifies that the cartographic content of each chart matches the original sources. Charts are examined for completeness, positional accuracy, correct coding and attribution, and functionality. Both manual inspection and software routines are used to detect problems.