Five complete sets of plans, as determined by the director, including but not limited to, profiles, cross-sections, topographic maps, erosion and sediment control plans, and accompanying specifications shall be submitted to the director with each application for grading approval or when otherwise required by the director for enforcement of any provision of this chapter. At the time of application, the applicant may provide preliminary grading plans. Prior to the issuance of grading approval, the applicant must furnish final grading plans and all erosion and sediment control plans. Preliminary grading plans with appropriate changes and additions thereto may be accepted as final grading plans. When the final grading plans and other required documents have been approved, grading approval will be issued by the director. The work shall be done in strict compliance with the approved plans and specifications which shall not be changed or altered except in accordance with the provisions of this chapter. (Prior code § 9.33.1701)