Affected employers shall maintain all records required by the public works director for the duration of this chapter. Affected employers shall include a list of the records they will keep as part of the commute trip reduction (CTR) program they submit to the city for approval. Employers will maintain all records listed in their program for a minimum of twenty-four months. (Ord. 860 § 7, 1998; Ord. 729 § 8, 1993).