![TZ-Pro-Black-Laptop-S52standard.jpg](/globalassets/c-map/mm3d/tz-pro-black-laptop-s52standard.jpg)
The S52 standard is published by the International Hydrographic Office (IHO). S-52 is an internationally adopted standard that regulates electronic vector chart display and iconography, to make it easy to view and understand. MapMedia .mm3d vector charts comply with this international standard.