Saudi Arabia's recent indigenization effort titled "Nitaqat" came into effect on September 10. Saudi firms have been color coded to four categories - Red, Yellow and Green, and Blue/VIP. Firms labeled "Red" will not be able to renew their foreign workers' visas and have until November 26 2011 to improve their status by hiring more Saudi natives. "Yellow" firms have until February 23 2012 to improve their status and will not be allowed to extend their existing foreign employees' work visas beyond six years. "Green” or “Excellent” firms with high Saudization rates will be allowed to offer jobs to foreign workers that are employed by firms in the Red and Yellow categories and transfer their visas. And firms in the highest “VIP” category will enjoy the ability to hire workers from any part of the world using a web-based system with minimal clearance.