This title may be amended by changing the boundaries of districts or by changing any other provision thereof whenever the public necessity and convenience and the general welfare require the amendment by the procedure set out in this chapter.
(Prior code §9-131)
An amendment may be initiated by:
A. 
The verified petition of one or more owners of property affected by the proposed amendment, which petition shall be filed with the planning commission, and shall be accompanied by a filing fee in such amount as may be fixed from time to time by order or resolution of the board of supervisors; or by
B. 
Resolution of intention of the board of supervisors; or by
C. 
Resolution of intention by the planning commission.
(Prior code §9-131(a))
A. 
The planning commission shall hold at least one public hearing on any proposed amendment and shall give notice thereof by at least one publication in a newspaper of general circulation within the county at least ten days prior to the first of the hearings.
B. 
If the proposed amendment consists of a change of the boundaries of any district, so as to reclassify property from any district to any other district, or to change the classification of any property from one district to any other district, the planning commission shall give additional notice of the time and place of the hearings and of the purpose thereof either;
1. 
By causing postcard notices to be mailed to all property owners within the district of which the boundaries are proposed to be changed, or whose property is proposed to be reclassified from one district to another, as shown on the preceding assessment roll of the county and to all owners of properties bordering or within three hundred feet of the exterior boundaries of the district, as shown on the roll; or
2. 
By posting at least three public notices of the hearings in conspicuous places on each street within the district and upon all streets which abut the property proposed to be reclassified from one district to another. Each such notice shall consist of the words "Notice of Proposed Zoning Change" in letters not less than one inch in height, and in addition thereto, a statement in small letters setting forth a general description of the area involved in the proposed change of boundaries of the district or the proposed reclassification of property; the times and places of the public hearings on the proposed change and any other information which the planning commission may deem to be necessary or desirable;
3. 
Any failure to post public notices as aforesaid shall not invalidate any proceedings for amendment of this title.
(Prior code §9-131(b))
A. 
Following the aforesaid hearings, the planning commission shall make a report of its findings and recommendations with respect to the proposed amendment and shall file with the board of supervisors an attested copy of the report within ninety days after the notice of the first of the hearings; provided, that the time limit may be extended upon the mutual agreement of the parties having an interest in the proceedings. Failure of the planning commission so to report within ninety days without the aforesaid agreement shall be deemed to be the district's approval of the proposed amendment by the planning commission.
B. 
The favorable recommendations of any amendment shall be carried by the affirmative vote of a majority of the voting members of the planning commission present.
(Prior code §9-131(c))
A. 
Upon receipt of the report from the planning commission or upon expiration of the ninety days as aforesaid, the board of supervisors shall fix a time and place for public hearing of the proposed amendment and give notice thereof by at least one publication in a newspaper of general circulation within the county at least ten days prior to the hearing; however, if the matter under consideration is an amendment to this code which would change property from one district to another, and the planning commission has recommended against the adoption of such an amendment, the board of supervisors shall not be required to take further action thereon unless an interested party shall request the hearing by filing a written request with the clerk of the board of supervisors within ten days after the planning commission files its recommendations with the board of supervisors. At the conclusion of any hearing held by the board of supervisors, the board may adopt the amendment or any part thereof set forth in the petition in such form as the board may deem to be advisable.
B. 
The decision of the board of supervisors shall be rendered within fifty days after the receipt of a report and recommendation from the planning commission, or after the expiration of such ninety days as aforesaid. In its discretion, the board of supervisors may extend the time for the decision an additional sixty days.
(Prior code §9-131(c))
No application for a zoning change which has been denied wholly or in part by the planning commission, or by the board of supervisors on appeal, shall be resubmitted for a period of one year from the date the order of denial became final, except on grounds of new evidence or proof of changed conditions found to be valid by the planning commission or the board of supervisors, whichever issued the order of denial.
(Prior code §9-131(d))