An anonymous reader writes "Companies sometimes require employees to hold or obtain certifications — for example in order to achieve Cisco certified partner status. Some companies pay for employees' exams and encourage employees to study on company time. Others expect employees to obtain mandated certifications on their personal time and dime. Should companies be able to require employees to obtain a certification, but refuse to pay for it, under threat of losing their job to a certified individual? Should it be or is it even legal to demand this of employees, especially if such a certification was not required at the time of hire?"