The Commission may authorize the acts described in §§ 5-202, 5-203, and 5-205 of this title and § 6-101(a) of this article if it finds that the authorization is consistent with the public convenience and necessity. Authority that the Commission grants under §§ 5-202 and 5-203 of this title does not: revive a lapsed franchise; validate an invalid franchise; enlarge or add to the powers and privileges of a franchise; or waive a forfeiture.