Except as expressly permitted by Section 15.152.040 of this chapter, it shall be unlawful for any person to erect, maintain, alter, or relocate or direct or order a person in his or her employ to erect, maintain, alter or relocate a sign within OSHD without first obtaining approval of the sign by the history manager and a permit from the director of planning, as provided in Section 15.152.060. (Ord. 2005-021 § 1; prior code § 3.19.264)