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According to Resolution 139 of 2012 the Directorate of National Taxes and Customs (DIAN) of Colombia, a new classification of economic activities used for purposes of monitoring and assessment of taxes and other tax obligations is adopted customs and exchange.
 
The application allows you to:
- Check the dates to file and make payments to the DIAN 2015.
- Consultation with the corresponding economic activity code
- Calculation of check digit by nit or certificate
- Consultation by code for:
 * Country
 * Town
 * Occupation (International Classification adapted for Colombia - DANE) ISCO-88 A. C.
- Browse by description for:
 * Economic activity
 * Country
 * Town
 * Occupation (International Classification adapted for Colombia - DANE) ISCO-88 A. C.