The Public Authority for Manpower said a window to transfer business visas into regular residencies in the private sector will expire at the end of December. The authority suspended the transfer of business visas to regular residencies on Nov 24, but gave those who already held such visas until the end of December to avail of the transfer window. If holders of commercial visas do not transfer them to regular residencies by the end of the month, they will be considered as canceled, a statement by PAM said.