91.6216.1. Existing Sign Rights. Every existing sign and/or sign support structure constructed under a valid permit and used in conformance with these regulations and Department approvals in effect at the time of construction shall be allowed to continue to exist under those regulations and approvals even though subsequent adopted regulations and approvals have changed the requirements.
91.6216.2. Maintenance of Existing Signs. Every sign and/or sign support structure shall be maintained in conformity with the requirements of this division and Chapter I of the LAMC.
91.6216.3. Illegal Signs, Construction and Use. Every existing sign and/or sign support structure or portion of a sign and/or sign support structure constructed without a valid building permit shall be made to conform to the current provisions of this Code or shall be demolished and removed. Any use of an existing sign constructed without a valid building permit shall be discontinued.
91.6216.4. Alterations, Repairs or Rehabilitation.
91.6216.4.1. Alterations, repairs or rehabilitation of any existing sign and/or support structure may be of the same type of construction as the existing sign or sign support structure provided:
1. The aggregate value of the work in any one year does not exceed ten percent of the replacement cost of both the sign and sign support structure; and
2. That there is no increase in sign area or height and no change in the location or orientation of the sign.
91.6216.4.2. Alterations, repairs or rehabilitation of existing sign and/or sign support structures in excess of ten percent of the replacement cost of both the sign and sign support structure may be made provided:
1. That the cost of the work does not exceed 50 percent of the replacement cost of both the sign and sign support structure; and
2. That there is no increase in the sign area or height and no change in the location or orientation of the sign; and
3. All new construction shall be as required for a new sign of the same type.
91.6216.4.3. Alterations, repairs or rehabilitation of existing sign and/or sign support structures that exceed 50 percent of the replacement cost of both the sign and sign support structure shall comply with all the requirements of this Code.
91.6216.5. Additions. Existing signs and/or sign support structures with additions or alterations that increase the sign area or height or which change the location or orientation of the sign shall comply with all of the requirements of this Code.