Who enforces sign rules and what happens to old or illegal signs

County Engineer. The County Engineer is charged with the enforcement and administration of this Article. Whenever necessary, and upon request of the County Engineer, the officials of the other departments of the County of Kaua'i shall render assistance, as is consistent with the usual duties of their respective departments.Nonconforming Signs. Any sign erected prior to May 15, 1987, in compliance with all of the then existing statutes, ordinances and regulations, shall be permitted to be maintained as a nonconforming sign, subject to the following conditions.Safe Condition. Nonconforming signs shall be maintained in a safe condition and shall not in any manner be dangerous to the public or to property.Alteration or Relocation. Upon the alteration or relocation of any nonconforming sign or the discontinuance or removal from the premises of the activity to which the sign relates, the sign shall cease to be a nonconforming sign and shall thereafter be permitted to be maintained only upon compliance with all requirements of this Article. The term "alteration" shall not mean repairs and maintenance for the purpose of keeping the sign in a clean and safe condition.Abatement and Removal of Unlawful Signs. Whenever it appears to the County Engineer that any sign has been constructed, erected, or is being maintained in violation of any of the terms of this Article, or that a permit therefor has been revoked or become void, or that a sign is unsafe or insecure or in a condition so as to be a menace to the safety of the public, he or she shall issue a notice in writing to either owner of the sign and the owner of the premises upon which the sign is erected or maintained, informing such person of the violation or dangerous condition of the sign and directing him or her to make the alteration or repair or do the things or acts necessary to make the sign comply with the requirements of this Article. The notice shall specify that compliance or removal of the sign shall be effected within five (5) working days of receipt of the notice. The notice may be given by personal service, or by depositing a copy thereof in the U.S. mail in a postage prepaid wrapper addressed to the street address of the premises upon which the sign is erected or maintained, or by posting a copy thereof on the premises upon which the sign is erected or maintained. Upon failure to comply with the notice within the time mentioned therein, the County Engineer shall cause the sign, or any part thereof as is constructed or maintained in an unsafe condition or otherwise in violation of this Article, to be removed, altered, or repaired so as to make it a conforming sign and shall charge the expense thereof to the person so notified. Notwithstanding any other provision of this Article, when any sign is in a condition so as to present an imminent danger to the safety of the public or to property, the County Engineer may remove or cause the sign to be removed summarily and without notice.Enforcement. The County Engineer shall have the police power to do all acts necessary to ensure that the provisions of this Article are not violated, including but not limited to, the issuance of citations for violations of any provision of this Article and the institution of a civil action in any court of competent jurisdiction to bring the violator in compliance with this Article.