Maryland Code, Environment § 2-303.2

(1) The averaging of reductions in vehicle miles traveled between different worksites of the same employer;

(2) The averaging of reductions in vehicle miles traveled between worksites of different employers;

(3) The sale between worksites and employers of credits for reduced vehicle miles traveled; and

(4) The greatest degree of flexibility in implementation, giving full consideration to the geographic differences among affected areas, in order to promote the economic and environmental interests of the areas affected.