Md. Code Ann., Lab. & Empl. § 9-723
In a proceeding to enforce a claim of an employee, an insurer may not assert, as a defense, that the employee is not a covered employee if the insurer has accepted or is entitled to receive from the employer, alone or in conjunction with other insurance, a premium for workers' compensation insurance with respect to the employee.
Added by Acts 1991, c. 8, § 2, eff. Oct. 1, 1991.
Formerly Art. 101, § 65.