For purposes of this subchapter, the term:
(1) “Commercial bicycle operator” means an individual at least 16 years of age who receives financial compensation for the delivery or pick-up of goods or services by bicycle as a substantial part of his or her business or earnings, as defined by the Mayor in rules developed pursuant to § 50-1632(d)(3).
(2) “Courier company” means any firm, partnership, company, corporation, or organization operating within the District of Columbia that employs, compensates, utilizes, or contracts with a commercial bicycle operator.
(3) “Mayor” means the Mayor of the District of Columbia.