When an employer closes its entire plant, business operation, part of its plant, or part of its business operation for inventory, vacation, or another purpose that will cause unemployment for a definite period not exceeding 10 weeks, the Secretary may exempt employees of the employer from the requirement of § 8–903(a)(1)(iii) of this subtitle to actively seek work during that period if the Secretary finds that circumstances and labor market conditions justify the exemption. Whenever an employer closes its entire plant, business operation, part of its plant, or part of its business operation for a purpose other than inventory or vacation that will cause unemployment for a definite period not exceeding 26 weeks, for the period of the specific shutdown, the Secretary may exempt employees of the employer from the requirement of § 8–903(a)(1)(iii) of this subtitle to actively seek work if: the employer and affected employees jointly request the exemption; the employer provides that all affected employees shall return to work for the employer within 26 weeks; and the Secretary determines that the exemption will promote productivity and economic stability within the State. This subsection does not exempt an individual from meeting the requirements of § 8–902(a) or § 8–903(a)(1)(i) and (ii) of this subtitle to be able to work and otherwise fully available for work. An exemption under this section may be granted only with respect to a specific plant or business operation closing.