A First Report of Injury (FROI) is required to establish a claim in the Workers' Compensation Automation and Integration System (WCAIS). Pennsylvania workers' compensation has a form for just about anything you can think of.Here is a list of the 7 most common workers' compensation forms. Employees will then receive the workers' compensation paperwork from their employer and must fill it out, then send it back to their employer. Instant access to fillable Microsoft Word or PDF forms. Minimize the risk of using outdated forms and eliminate rejected fillings. Common Legal Forms Used in Claims for Workers' Compensation in Pennsylvania. Fill out the form with a brief description of your situation or call me at (610) 566-0600 and I'll be in touch to schedule a free consultation. We're providing an overview of how the pennsylvania workers compensation system is set up today. We're talking about forms.