To officially file a workers' comp claim in NC, complete Form 18 from the North Carolina Industrial Commission or your employer. The main phone number for the N.C. Industrial Commission is 919-807-2501, or toll-free at 800-688-8349, Monday through Friday from AM until PM.Plan. Plan refers to North Carolina's Workers Compensation Insurance Plan (WCIP), as set out in Rule. 4-A. h. This form enables us to calculate the correct compensation for an injured employee. Include the business telephone and fax numbers, including area code, and the applicant's Federal Employers Identification Number.