Maryland Code, Transportation § 24-301

(b)(1) “Established place of business” means any permanent building or structure from which a permanent business is conducted during normal business hours throughout the year.

(2) “Established place of business” does not include a tent, temporary stand or other temporary quarters, or permanent quarters occupied under a temporary arrangement.

(1) While outdoors on foot;

(2) From any vehicle or conveyance, whether or not the vehicle or conveyance is in operating condition; or

(3) From any tent, temporary stand, roadside stand, roadside market, or other quarters that is not an established place of business.

(d)(1) “Produce” means any fruit or vegetable product of the soil that is intended for human consumption.

(2) “Produce” does not include a canned, frozen, dried, or pickled product.