§ 17.34.040. Nonconforming uses.

A.

Regulations Not Retroactive. The regulations prescribed in this chapter shall not be construed to require the removal, lowering or other change or alteration of any structure or tree not conforming to the regulations as of the effective date of the ordinance codified in this title, or otherwise interfere with the continuance of a nonconforming use. Nothing contained herein shall require any change in the construction, alteration, or intended use of any structure, the construction or alteration of which has begun prior to the effective date of the ordinance codified in this title, and is diligently prosecuted.

B.

Marking and Lighting. Notwithstanding the preceding provision of this section, the owner of any existing nonconforming structure or tree is required to permit the installation, operation, and maintenance thereon of such markers and lights as shall be deemed necessary by the airport manager to indicate to the operators of aircraft in the vicinity of the airport, the presence of such airport hazards. Such markers and lights shall be installed, operated and maintained at the expense of Butte-Silver Bow, state of Montana.

(Ord. 53 § 160-4, 1978)