Section 142.55 - Final schedule(a) Within 30 days after the termination of the public hearing pursuant to § 142.54 , the Administrator shall, taking into consideration information obtained during such hearing, revise the proposed schedule as necessary and prescribe the final schedule for compliance and interim measures for the public water system granted an exemption under § 142.52 .(b) Such schedule must require compliance with each contaminant level and treatment technique requirement with respect to which the exemption was granted as expeditiously as practicable but not later than 3 years after the otherwise applicable compliance date established in section 1412(b)(10) of the Act.41 FR 2918, Jan. 20, 1976, as amended at 52 FR 20675, June 2, 1987; 63 FR 43848, Aug. 14, 1998