(a) The Postal Service shall file a notice with the Commission describing each material change made to the market test or services offered under the market test at least 10 days before implementing such changes. Material changes are changes that may affect compliance with 39 U.S.C. 3641 and include, without limitation, adjustments to prices, geographic scope, eligibility for service, and termination date.

(b) The Commission may, in its discretion, notice the filing and provide an opportunity for comment.