Section 50.30 - General participation requirements(a)Insurers. As defined in § 50.4(o) , all state residual market insurance entities and state workers' compensation funds are insurers under the Program even if such entities do not receive direct earned premiums.(b)Mandatory participation. State residual market insurance entities and State workers' compensation funds are mandatory participants in the Program subject to the rules issued in this Subpart. 81 FR 93765 , Dec. 21, 2016, as amended at 86 FR 30540 , June 9, 2021 81 FR 93765 , 1/17/2017; 86 FR 30540 , 7/12/2021