in the case of a corporation, firm, or other business entity including any parent company or subsidiary of such a corporation, firm, or other business entity, that holds any type or production certificate or similar authorization issued under
section 44704 of title 49, United States Code, with respect to a transport-category airplane covered under part 25 of title 14, Code of Federal Regulations, certificated with a passenger seating capacity of 50 or more, agrees to refrain from conducting involuntary layoffs or furloughs, or reducing pay rates and benefits, for the eligible employee group, subject to the employer’s right to discipline or terminate an employee in accordance with employer policy from the date of agreement until
September 30, 2021, or the duration of the agreement and receipt of public contributions under this part, whichever period ends later; or