Enacts new GS 97-31.2, Limits on benefits payable to highly compensated employees. Provides that an employee whose injury, occupational disease, or injurious exposure arose out of and in the course of employment is not entitled to workers' compensation under GS 97-29, 97-30, or 97-31 if the employee's earnings at the time of the injury are equivalent to an average weekly wage of more than 10 times the maximum benefit amount as calculated under GS 97-29(i). Provides that for an occupational disease claim that the determination will be made based on the employee's earnings for the final year of employment in the job which gives rise to the occupational disease claim. Prohibits anything in this section from being construed to eliminate or diminish an employer's obligation to pay medical expenses as provided by GS Chapter 97. Provides that regardless of the provisions of GS 97-31.1, which sets the effective date for legislative changes in benefits in Chapter 97, this act is effective when it becomes law and applies to claims arising on or after that date.