The federal Fair Labor Standards Act (FLSA) and the laws in most states require that employers keep accurate records of hours worked and wages paid to nonexempt employees. Records of hours worked can be tracked using a variety of methods, including handwritten time cards, time clocks, or Web clocks, or through the use of terminals that can read barcodes on badges, fingerprints and handprints, magnetic strips on badges, or information typed into a keypad. There are even ways to clock in from a mobile phone for employees telecommuting or traveling. Any one of these methods is fine as long as accurate records are kept.