Maryland Code, Transportation § 18-101

(a) In this title, “rent” means to rent or lease for a period not exceeding 180 days.

(b) This title does not apply to peer-to-peer car sharing of a shared motor vehicle made available on a peer-to-peer car sharing program, as defined under § 19-520 of the Insurance Article, and that is subject to Title 18.5 of this article.