In this subtitle the following words have the meanings indicated. “Engage in the business of an out–of–state vendor” means to sell or deliver tangible personal property or a taxable service for use in the State or a digital product or digital code to a customer tax address in the State. “Engage in the business of an out–of–state vendor” includes: permanently or temporarily maintaining, occupying, or using any office, sales or sample room, or distribution, storage, warehouse, or other place for the sale of tangible personal property, a digital code, a digital product, or a taxable service directly or indirectly through an agent or subsidiary; having an agent, canvasser, representative, salesman, or solicitor operating in the State for the purpose of delivering, selling, or taking orders for tangible personal property, a digital code, a digital product, or a taxable service; or entering the State on a regular basis to provide service or repair for tangible personal property or a digital product. “Engage in the business of a retail vendor” means to sell or deliver tangible personal property, a digital code, a digital product, or a taxable service in the State. “Engage in the business of a retail vendor” includes liquidating a business that sells tangible personal property, a digital code, a digital product, or a taxable service, when the liquidator holds out to the public that the business is conducted by the liquidator. “License” means a license issued by the Comptroller: to engage in the business of an out–of–state vendor; to engage in the business of a retail vendor; or to engage in the business of a marketplace facilitator. “License” includes a special license issued under § 11–707 of this subtitle.