166(2)The services that are legislatively required to be provided by the following licensed professionals are exempt from the application of the Act if the services are procured by or on behalf of a Schedule A entity or a Schedule B entity that is not subject to CETA, or by or on behalf of a Schedule A entity or a Schedule B entity that is subject to CETA and the estimated value of the services to be procured is less than the lowest applicable threshold value of CETA: